chore(deps): bump tar to 7.5.19 (#4345)

Pins `tar` to `7.5.19` via a root `pnpm.overrides` entry, replacing a
stale range override (`tar@>=7 <7.5.11`) that no longer matched any
installed copy.

The single override collapses all resolved `tar` copies onto one
version:

- `packages/cli-v3` — direct dependency (was 7.5.13)
- `@kubernetes/client-node` (apps/supervisor) — transitive (was 7.5.13)
- `cacache` — transitive (was 6.2.1)
- `giget` — transitive (was 6.2.1)

No source changes; cli-v3's published `^7.5.13` spec already permits
`7.5.19`, so no changeset is needed.

Author: claude[bot]

package.json

@@ -102,7 +102,7 @@
       "@ai-sdk/provider-utils@^4": "4.0.29",
       "express@^4>body-parser": "1.20.3",
       "@remix-run/dev@2.17.5>tar-fs": "2.1.4",
-      "tar@>=7 <7.5.11": "^7.5.11",
+      "tar": "7.5.19",
       "form-data@^2": "2.5.4",
       "form-data@^3": "3.0.5",
       "form-data@^4": "4.0.6",