Bump octicons_helper from 19.6.0 to 19.7.0

Bumps [octicons_helper](https://github.com/primer/octicons) from 19.6.0 to 19.7.0.
- [Release notes](https://github.com/primer/octicons/releases)
- [Changelog](https://github.com/primer/octicons/blob/main/CHANGELOG.md)
- [Commits](primer/octicons@v19.6.0...v19.7.0)

---
updated-dependencies:
- dependency-name: octicons_helper
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Gemfile.lock

@@ -138,10 +138,10 @@ GEM
       racc (~> 1.4)
     nokogiri (1.15.4-x86_64-linux)
       racc (~> 1.4)
-    octicons (19.6.0)
-    octicons_helper (19.6.0)
+    octicons (19.7.0)
+    octicons_helper (19.7.0)
       actionview
-      octicons (= 19.6.0)
+      octicons (= 19.7.0)
       railties
     oj (3.16.0)
     open-uri (0.3.0)