Build(deps): Bump mini_racer from 0.6.2 to 0.6.3 (#17956)

Bumps [mini_racer](https://github.com/discourse/mini_racer) from 0.6.2 to 0.6.3.
- [Release notes](https://github.com/discourse/mini_racer/releases)
- [Changelog](https://github.com/rubyjs/mini_racer/blob/master/CHANGELOG)
- [Commits](https://github.com/discourse/mini_racer/compare/v0.6.2...v0.6.3)

---
updated-dependencies:
- dependency-name: mini_racer
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

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

Gemfile.lock

@@ -242,7 +242,7 @@ GEM
     method_source (1.0.0)
     mini_mime (1.1.2)
     mini_portile2 (2.8.0)
-    mini_racer (0.6.2)
+    mini_racer (0.6.3)
       libv8-node (~> 16.10.0.0)
     mini_scheduler (0.14.0)
       sidekiq (>= 4.2.3)