Bump font-awesome-sass from 6.5.2 to 6.7.2

Bumps [font-awesome-sass](https://github.com/FortAwesome/font-awesome-sass) from 6.5.2 to 6.7.2.
- [Release notes](https://github.com/FortAwesome/font-awesome-sass/releases)
- [Commits](https://github.com/FortAwesome/font-awesome-sass/commits)

---
updated-dependencies:
- dependency-name: font-awesome-sass
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Gemfile.lock

@@ -196,7 +196,7 @@ GEM
     ffi (1.17.0-aarch64-linux-musl)
     ffi (1.17.0-x86_64-linux-gnu)
     ffi (1.17.0-x86_64-linux-musl)
-    font-awesome-sass (6.5.2)
+    font-awesome-sass (6.7.2)
       sassc (~> 2.0)
     formtastic (5.0.0)
       actionpack (>= 6.0.0)