Bump sentry-rails from 5.20.1 to 5.21.0

Bumps [sentry-rails](https://github.com/getsentry/sentry-ruby) from 5.20.1 to 5.21.0.
- [Release notes](https://github.com/getsentry/sentry-ruby/releases)
- [Changelog](https://github.com/getsentry/sentry-ruby/blob/master/CHANGELOG.md)
- [Commits](getsentry/sentry-ruby@5.20.1...5.21.0)

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

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

Gemfile.lock

@@ -62,7 +62,6 @@ GEM
       marcel (~> 1.0)
     activesupport (7.2.1)
       base64
-      benchmark (>= 0.3)
       bigdecimal
       concurrent-ruby (~> 1.0, >= 1.3.1)
       connection_pool (>= 2.2.5)
@@ -75,7 +74,6 @@ GEM
     ast (2.4.2)
     base64 (0.2.0)
     bcrypt (3.1.20)
-    benchmark (0.3.0)
     bigdecimal (3.1.8)
     brakeman (6.2.1)
       racc
@@ -294,10 +292,10 @@ GEM
       rubocop-rails
     ruby-progressbar (1.13.0)
     securerandom (0.3.1)
-    sentry-rails (5.20.1)
+    sentry-rails (5.21.0)
       railties (>= 5.0)
-      sentry-ruby (~> 5.20.1)
-    sentry-ruby (5.20.1)
+      sentry-ruby (~> 5.21.0)
+    sentry-ruby (5.21.0)
       bigdecimal
       concurrent-ruby (~> 1.0, >= 1.0.2)
     shoulda-matchers (6.4.0)