Bump super_diff from 0.14.0 to 0.15.0

Bumps [super_diff](https://github.com/splitwise/super_diff) from 0.14.0 to 0.15.0.
- [Release notes](https://github.com/splitwise/super_diff/releases)
- [Changelog](https://github.com/splitwise/super_diff/blob/main/CHANGELOG.md)
- [Commits](splitwise/super_diff@v0.14.0...v0.15.0)

---
updated-dependencies:
- dependency-name: super_diff
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Gemfile.lock

@@ -690,7 +690,7 @@ GEM
       activesupport (>= 5.2.0)
     smart_properties (1.17.0)
     stringio (3.1.2)
-    super_diff (0.14.0)
+    super_diff (0.15.0)
       attr_extras (>= 6.2.4)
       diff-lcs
       patience_diff