Bump sentry-ruby from 5.6.0 to 5.8.0

Bumps [sentry-ruby](https://github.com/getsentry/sentry-ruby) from 5.6.0 to 5.8.0.
- [Release notes](https://github.com/getsentry/sentry-ruby/releases)
- [Changelog](https://github.com/getsentry/sentry-ruby/blob/master/CHANGELOG.md)
- [Commits](getsentry/sentry-ruby@5.6.0...5.8.0)

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

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

Gemfile.lock

@@ -345,10 +345,10 @@ GEM
     sdoc (2.6.1)
       rdoc (>= 5.0)
     select2-rails (4.0.13)
-    sentry-rails (5.6.0)
+    sentry-rails (5.8.0)
       railties (>= 5.0)
-      sentry-ruby (~> 5.6.0)
-    sentry-ruby (5.6.0)
+      sentry-ruby (~> 5.8.0)
+    sentry-ruby (5.8.0)
       concurrent-ruby (~> 1.0, >= 1.0.2)
     sidekiq (7.0.8)
       concurrent-ruby (< 2)