fix(deps): bump markdownlint-cli from ^0.31.1 to ^0.48.0 (#284)

## Summary
- Bumps `markdownlint-cli` from `^0.31.1` to `^0.48.0`
- Also bumps `markdownlint` lib from `^0.25.1` to `^0.40.0` to match
- Replaces `glob` with `tinyglobby` (no more vulnerable glob dep)
- Uses `minimatch@10.2.5` (patched, replaces vulnerable 10.0.3)

## Breaking changes in markdownlint-cli 0.31 -> 0.48
- **Node.js >=20 required** (was >=12) — we use Node 20, not affected
- **`glob` replaced by `tinyglobby`** — internal dep swap, CLI interface
unchanged, not affected
- **`markdownlint` lib 0.25 -> 0.40** — internal engine upgrade,
switched to `markdown-it` parser. Some rules renamed/added. We only run
`markdownlint docs` with default config, existing warnings are
pre-existing, not affected
- **New/updated lint rules** — some rules added or tightened across
versions. Output now labels findings as "error" instead of bare rule
names. Cosmetic only, not affected
- **Config format additions** (TOML support added) — our config is
unchanged, not affected

## Dependabot alerts resolved
- Resolves glob command injection (high) — `glob` removed entirely,
replaced by `tinyglobby`
- Resolves minimatch ReDoS alerts via `minimatch@10.2.5`:
[#213](https://github.com/getsentry/rrweb/security/dependabot/213),
[#212](https://github.com/getsentry/rrweb/security/dependabot/212),
[#208](https://github.com/getsentry/rrweb/security/dependabot/208),
[#201](https://github.com/getsentry/rrweb/security/dependabot/201)
- Partially resolves brace-expansion alerts:
[#238](https://github.com/getsentry/rrweb/security/dependabot/238),
[#134](https://github.com/getsentry/rrweb/security/dependabot/134)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: chargome

package.json

@@ -36,8 +36,8 @@
     "eslint-plugin-jest": "^27.6.0",
     "jsdom": "^25.0.0",
     "eslint-plugin-tsdoc": "^0.2.17",
-    "markdownlint": "^0.25.1",
-    "markdownlint-cli": "^0.31.1",
+    "markdownlint": "^0.40.0",
+    "markdownlint-cli": "^0.48.0",
     "prettier": "2.8.4",
     "size-limit": "~8.2.6",
     "turbo": "^2.0.3",