Bump honeybadger from 5.10.0 to 5.15.6

Bumps [honeybadger](https://github.com/honeybadger-io/honeybadger-ruby) from 5.10.0 to 5.15.6.
- [Release notes](https://github.com/honeybadger-io/honeybadger-ruby/releases)
- [Changelog](https://github.com/honeybadger-io/honeybadger-ruby/blob/master/CHANGELOG.md)
- [Commits](honeybadger-io/honeybadger-ruby@v5.10.0...v5.15.6)

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

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

Gemfile.lock

@@ -174,7 +174,7 @@ GEM
       activesupport (>= 6.1)
     heapy (0.2.0)
       thor
-    honeybadger (5.10.0)
+    honeybadger (5.15.6)
     http_parser.rb (0.8.0)
     i18n (1.14.5)
       concurrent-ruby (~> 1.0)