auto-docs: Update Go modules

[vbotbuildovich]

This PR updates the Go modules for the Bloblang playground Wasm code.

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📝 Walkthrough

Walkthrough

This PR updates the Go module file for blobl-editor's WASM package, advancing the Go toolchain from version 1.25.6 to 1.26.3. The direct dependencies github.com/redpanda-data/benthos/v4 and github.com/redpanda-data/connect/v4 are bumped to newer versions, and numerous indirect dependencies are updated, including protobuf utilities, compression libraries, JSON utilities, parquet support, logging frameworks, OpenTelemetry modules, and several golang.org/x packages.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

Possibly related PRs

• redpanda-data/docs-ui#303: Modifies blobl-editor/wasm/go.mod by bumping github.com/redpanda-data/connect/v4 dependency versions.
• redpanda-data/docs-ui#324: Updates blobl-editor/wasm/go.mod with version bumps to benthos/v4 and connect/v4 direct dependencies.
• redpanda-data/docs-ui#354: Updates the same file with Go toolchain directive and direct dependency version changes for benthos and connect modules.

Suggested reviewers

• JakeSCahill

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title 'auto-docs: Update Go modules' is clearly related to the changeset, which updates Go module dependencies in blobl-editor/wasm/go.mod.
Description check	✅ Passed	The description 'This PR updates the Go modules for the Bloblang playground Wasm code' is directly related to the changeset, which updates Go module versions in blobl-editor/wasm/go.mod.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch update-go-mod

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[Feediver1]

Docs standards review (Bloblang playground WASM dep update)

Files reviewed: 2 (blobl-editor/wasm/go.mod, blobl-editor/wasm/go.sum). Not an .adoc content PR — this is an automated dependency-update bot PR for the Bloblang playground's WASM build.

What this PR does

Routine Go-modules sync for the Bloblang playground WASM. Key bumps:

• Go runtime: 1.25.6 → 1.26.3
• redpanda-data/benthos/v4: v4.63.1 → v4.73.0 (10 minor versions)
• redpanda-data/connect/v4: v4.78.0 → v4.94.1 (16 minor versions — significant jump that brings the playground's runtime in line with the current Connect release we've been documenting in rp-connect-docs)
• Many indirect dep bumps (mostly patch-level): OpenTelemetry 1.39 → 1.43, golang.org/x/crypto 0.46 → 0.52, klauspost/compress, apache/thrift, parquet-go/parquet-go, etc.
• New indirect deps added: jhump/protoreflect/v2 v2.0.0-beta.2, parquet-go/bitpack, parquet-go/jsonlite, petermattis/goid, twpayne/go-geom
• Removed: bufbuild/protocompile (apparently replaced by jhump/protoreflect/v2)

Critical issues

None.

Things worth noting (not blockers)

1. One beta dependency introduced as indirect: github.com/jhump/protoreflect/v2 v2.0.0-beta.2. This is a transitive dep (not chosen by this PR), but worth flagging that the playground now depends on a beta-grade protocol-reflection library. If the playground starts misbehaving on protobuf-related Bloblang operations, this is a candidate to investigate first.

2. Two pseudo-versions added (no real semver tag): nsf/jsondiff v0.0.0-20260207060731-... and petermattis/goid v0.0.0-20260226131333-.... Standard Go practice for unreleased deps, but harder to audit than tagged releases. The petermattis/goid add is new — it's typically used for mutex/goroutine debugging instrumentation, and as a transitive its appearance probably tracks an upstream change in benthos or connect.

3. 16 minor versions of Connect in one PR is a large jump. The bot is catching up after a long gap (PR opened 2026-05-21, almost 2 weeks ago). If anything in benthos's Bloblang semantics changed between v4.63 and v4.73, this is the PR that introduces it. The test-bloblang-playground check passes, so at minimum the playground still runs — but it's the kind of change worth a quick manual test against a known-tricky Bloblang expression before merge.

Suggestions

1. Manual sanity-test the playground against the deploy preview. Try a Bloblang expression that exercises something potentially non-trivial (e.g., a protobuf decode/encode, an Iceberg-relevant transform, a date math expression) and confirm output matches expectations. The CI test covers the existence/build of the WASM bundle but probably not deep semantics across the dep upgrade window.

2. 2-week-old bot PR without review is a process smell. Bot PRs that update production-facing components (the Bloblang playground is user-facing on docs.redpanda.com) should probably auto-merge after a window of green CI, OR get human triage on a known cadence. Worth raising as a separate process discussion — not in scope to fix in this PR.

3. No PR description detail beyond "This PR updates the Go modules for the Bloblang playground Wasm code" is fine for a routine bot PR. If you want richer auditing, the bot could include a git diff summary of which deps moved by major/minor/patch. Out of scope here.

Impact on other files

• No .adoc changes — this only touches the WASM build artifact's dependency manifest.
• Bloblang playground rendering on docs.redpanda.com will use the updated WASM after merge + UI bundle rebuild. Worth eyeballing the playground page once this lands to confirm no regression in basic interactivity.
• No nav.adoc, xrefs, or content affected.

CodeRabbit findings

None — CodeRabbit doesn't typically post on go.sum diffs (too noisy, no signal).

What works well

• test-bloblang-playground: SUCCESS — the WASM still compiles and the playground test suite passes against the new deps. This is the meaningful signal.
• Routine, scoped, automated — bot only touched go.mod / go.sum. No incidental drift into other files.
• Connect at v4.94.1 matches recent rp-connect-docs work — keeping the playground's runtime aligned with current product is the right state.

Verdict

This is a routine dep-update PR that's been sitting too long. CI is green, the test suite exercises the WASM bundle, and the changes are all expected for a "catch up to current Connect" sweep. Probably safe to merge after a one-minute manual playground sanity check on the deploy preview. The 2-week gap without review is the more interesting concern — but that's a process question for bot PRs in general, not a defect in this one.