meta: bump the mdx group with 6 updates (#8737)

Bumps the mdx group with 6 updates:

| Package | From | To |
| --- | --- | --- |
| [@shikijs/core](https://github.com/shikijs/shiki/tree/HEAD/packages/core) | `3.23.0` | `4.0.2` |
| [@shikijs/engine-javascript](https://github.com/shikijs/shiki/tree/HEAD/packages/engine-javascript) | `3.23.0` | `4.0.2` |
| [@shikijs/engine-oniguruma](https://github.com/shikijs/shiki/tree/HEAD/packages/engine-oniguruma) | `3.23.0` | `4.0.2` |
| [@shikijs/twoslash](https://github.com/shikijs/shiki/tree/HEAD/packages/twoslash) | `3.23.0` | `4.0.2` |
| [shiki](https://github.com/shikijs/shiki/tree/HEAD/packages/shiki) | `3.23.0` | `4.0.2` |
| [remark-reading-time](https://github.com/mattjennings/remark-reading-time) | `2.0.2` | `2.1.0` |


Updates `@shikijs/core` from 3.23.0 to 4.0.2
- [Release notes](https://github.com/shikijs/shiki/releases)
- [Commits](https://github.com/shikijs/shiki/commits/v4.0.2/packages/core)

Updates `@shikijs/engine-javascript` from 3.23.0 to 4.0.2
- [Release notes](https://github.com/shikijs/shiki/releases)
- [Commits](https://github.com/shikijs/shiki/commits/v4.0.2/packages/engine-javascript)

Updates `@shikijs/engine-oniguruma` from 3.23.0 to 4.0.2
- [Release notes](https://github.com/shikijs/shiki/releases)
- [Commits](https://github.com/shikijs/shiki/commits/v4.0.2/packages/engine-oniguruma)

Updates `@shikijs/twoslash` from 3.23.0 to 4.0.2
- [Release notes](https://github.com/shikijs/shiki/releases)
- [Commits](https://github.com/shikijs/shiki/commits/v4.0.2/packages/twoslash)

Updates `shiki` from 3.23.0 to 4.0.2
- [Release notes](https://github.com/shikijs/shiki/releases)
- [Commits](https://github.com/shikijs/shiki/commits/v4.0.2/packages/shiki)

Updates `remark-reading-time` from 2.0.2 to 2.1.0
- [Release notes](https://github.com/mattjennings/remark-reading-time/releases)
- [Commits](mattjennings/remark-reading-time@2.0.2...v2.1.0)

---
updated-dependencies:
- dependency-name: "@shikijs/core"
  dependency-version: 4.0.2
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: mdx
- dependency-name: "@shikijs/engine-javascript"
  dependency-version: 4.0.2
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: mdx
- dependency-name: "@shikijs/engine-oniguruma"
  dependency-version: 4.0.2
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: mdx
- dependency-name: "@shikijs/twoslash"
  dependency-version: 4.0.2
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: mdx
- dependency-name: shiki
  dependency-version: 4.0.2
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: mdx
- dependency-name: remark-reading-time
  dependency-version: 2.1.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: mdx
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

apps/site/package.json

@@ -69,7 +69,7 @@
     "rehype-autolink-headings": "~7.1.0",
     "rehype-slug": "~6.0.0",
     "remark-gfm": "~4.0.1",
-    "remark-reading-time": "~2.0.2",
+    "remark-reading-time": "~2.1.0",
     "semver": "~7.7.4",
     "sval": "^0.6.8",
     "tailwindcss": "catalog:",

packages/rehype-shiki/package.json

@@ -32,13 +32,13 @@
     "test:unit": "cross-env NODE_NO_WARNINGS=1 node --experimental-test-coverage --experimental-test-module-mocks --test \"**/*.test.mjs\""
   },
   "dependencies": {
-    "@shikijs/core": "^3.23.0",
-    "@shikijs/engine-javascript": "^3.23.0",
-    "@shikijs/engine-oniguruma": "^3.23.0",
-    "@shikijs/twoslash": "^3.23.0",
+    "@shikijs/core": "^4.0.2",
+    "@shikijs/engine-javascript": "^4.0.2",
+    "@shikijs/engine-oniguruma": "^4.0.2",
+    "@shikijs/twoslash": "^4.0.2",
     "classnames": "catalog:",
     "hast-util-to-string": "^3.0.1",
-    "shiki": "~3.23.0",
+    "shiki": "~4.0.2",
     "typescript": "catalog:",
     "unist-util-visit": "^5.1.0"
   },