build(deps): Bump fastlane-plugin-sentry from 1.18.0 to 1.21.0

Bumps [fastlane-plugin-sentry](https://github.com/getsentry/sentry-fastlane-plugin) from 1.18.0 to 1.21.0.
- [Release notes](https://github.com/getsentry/sentry-fastlane-plugin/releases)
- [Changelog](https://github.com/getsentry/sentry-fastlane-plugin/blob/master/CHANGELOG.md)
- [Commits](getsentry/sentry-fastlane-plugin@1.18.0...1.21.0)

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

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

Gemfile.lock

@@ -110,7 +110,7 @@ GEM
     fastlane-plugin-get_version_code (0.2.0)
     fastlane-plugin-get_version_name (0.2.2)
     fastlane-plugin-increment_version_code (0.4.3)
-    fastlane-plugin-sentry (1.18.0)
+    fastlane-plugin-sentry (1.21.0)
       os (~> 1.1, >= 1.1.4)
     fastlane-plugin-versioning_android (0.1.1)
     gh_inspector (1.1.3)