build(deps): bump @docusaurus/theme-classic from 3.6.1 to 3.6.3

Bumps [@docusaurus/theme-classic](https://github.com/facebook/docusaurus/tree/HEAD/packages/docusaurus-theme-classic) from 3.6.1 to 3.6.3.
- [Release notes](https://github.com/facebook/docusaurus/releases)
- [Changelog](https://github.com/facebook/docusaurus/blob/main/CHANGELOG.md)
- [Commits](https://github.com/facebook/docusaurus/commits/v3.6.3/packages/docusaurus-theme-classic)

---
updated-dependencies:
- dependency-name: "@docusaurus/theme-classic"
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

package.json

@@ -23,7 +23,7 @@
     "@docusaurus/plugin-content-blog": "3.6.1",
     "@docusaurus/plugin-content-docs": "3.6.1",
     "@docusaurus/preset-classic": "3.6.1",
-    "@docusaurus/theme-classic": "3.6.1",
+    "@docusaurus/theme-classic": "3.6.3",
     "@docusaurus/theme-common": "3.6.1",
     "@docusaurus/theme-mermaid": "3.6.1",
     "@docusaurus/types": "3.6.1",