Bump sentry-sidekiq from 5.15.0 to 5.15.2

Bumps [sentry-sidekiq](https://github.com/getsentry/sentry-ruby) from 5.15.0 to 5.15.2.
- [Release notes](https://github.com/getsentry/sentry-ruby/releases)
- [Changelog](https://github.com/getsentry/sentry-ruby/blob/master/CHANGELOG.md)
- [Commits](getsentry/sentry-ruby@5.15.0...5.15.2)

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

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

Gemfile.lock

@@ -653,10 +653,10 @@ GEM
     sentry-rails (5.15.0)
       railties (>= 5.0)
       sentry-ruby (~> 5.15.0)
-    sentry-ruby (5.15.0)
+    sentry-ruby (5.15.2)
       concurrent-ruby (~> 1.0, >= 1.0.2)
-    sentry-sidekiq (5.15.0)
-      sentry-ruby (~> 5.15.0)
+    sentry-sidekiq (5.15.2)
+      sentry-ruby (~> 5.15.2)
       sidekiq (>= 3.0)
     sidekiq (6.5.12)
       connection_pool (>= 2.2.5, < 3)