Bump sentry-ruby from 5.20.1 to 5.21.0 (#309)

Bumps [sentry-ruby](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-ruby
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile

@@ -21,7 +21,7 @@ gem 'rack', '~> 2.2.8'
 gem 'rack-cors', '~> 2.0'
 gem 'rake', '~> 13.1'
 gem 'secure_headers', '~> 6.7'
-gem 'sentry-ruby', '~> 5.20'
+gem 'sentry-ruby', '~> 5.21'
 
 group :development do
   gem 'bundler-audit', '~> 0.9.2'

Gemfile.lock

@@ -237,7 +237,7 @@ GEM
     ruby2_keywords (0.0.5)
     secure_headers (6.7.0)
     securerandom (0.3.1)
-    sentry-ruby (5.20.1)
+    sentry-ruby (5.21.0)
       bigdecimal
       concurrent-ruby (~> 1.0, >= 1.0.2)
     shellany (0.0.1)
@@ -296,7 +296,7 @@ DEPENDENCIES
   rubocop-rake (~> 0.6.0)
   rubocop-rspec (~> 3.1)
   secure_headers (~> 6.7)
-  sentry-ruby (~> 5.20)
+  sentry-ruby (~> 5.21)
   simplecov (~> 0.22.0)
   simplecov-cobertura (~> 2.1)
   timecop (~> 0.9.10)