Bump sentry-rails from 5.17.3 to 5.21.0 (#289)

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

Author: dependabot[bot]

Gemfile.lock

@@ -158,7 +158,7 @@ GEM
     i18n (1.14.6)
       concurrent-ruby (~> 1.0)
     io-console (0.7.2)
-    irb (1.14.0)
+    irb (1.14.1)
       rdoc (>= 4.0.0)
       reline (>= 0.4.2)
     jsbundling-rails (1.3.1)
@@ -554,7 +554,7 @@ GEM
       activesupport (>= 5.2.0, < 8.0)
       concurrent-ruby (~> 1.0)
       method_source (~> 1.0)
-    webrick (1.8.1)
+    webrick (1.8.2)
     websocket-driver (0.7.6)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.5)