Bump mini_racer from 0.6.0 to 0.6.1

Bumps [mini_racer](https://github.com/discourse/mini_racer) from 0.6.0 to 0.6.1.
- [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/v0.6.0...v0.6.1)

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

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

Gemfile.lock

@@ -147,7 +147,7 @@ GEM
     mercenary (0.4.0)
     method_source (1.0.0)
     mini_portile2 (2.7.1)
-    mini_racer (0.6.0)
+    mini_racer (0.6.1)
       libv8-node (~> 16.10.0.0)
     minima (2.5.1)
       jekyll (>= 3.5, < 5.0)