meta: bump the mdx group with 3 updates

---
updated-dependencies:
- dependency-name: "@shikijs/core"
  dependency-version: 3.7.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: mdx
- dependency-name: "@shikijs/engine-javascript"
  dependency-version: 3.7.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: mdx
- dependency-name: shiki
  dependency-version: 3.7.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: mdx
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

packages/rehype-shiki/package.json

@@ -13,12 +13,12 @@
     "test:unit": "cross-env NODE_NO_WARNINGS=1 node --experimental-test-coverage --experimental-test-module-mocks --test \"**/*.test.mjs\""
   },
   "dependencies": {
-    "@shikijs/core": "^3.4.2",
-    "@shikijs/engine-javascript": "^3.4.2",
+    "@shikijs/core": "^3.7.0",
+    "@shikijs/engine-javascript": "^3.7.0",
     "@shikijs/engine-oniguruma": "^3.7.0",
     "classnames": "~2.5.1",
     "hast-util-to-string": "^3.0.1",
-    "shiki": "~3.4.2",
+    "shiki": "~3.7.0",
     "unist-util-visit": "^5.0.0"
   }
 }