Bump rubocop-capybara from 2.20.0 to 2.21.0

Bumps [rubocop-capybara](https://github.com/rubocop/rubocop-capybara) from 2.20.0 to 2.21.0.
- [Release notes](https://github.com/rubocop/rubocop-capybara/releases)
- [Changelog](https://github.com/rubocop/rubocop-capybara/blob/main/CHANGELOG.md)
- [Commits](rubocop/rubocop-capybara@v2.20.0...v2.21.0)

---
updated-dependencies:
- dependency-name: rubocop-capybara
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Gemfile.lock

@@ -45,7 +45,7 @@ GEM
     rainbow (3.1.1)
     rake (13.2.1)
     regexp_parser (2.9.2)
-    rexml (3.3.1)
+    rexml (3.3.2)
       strscan
     rubocop (1.65.0)
       json (~> 2.3)
@@ -60,7 +60,7 @@ GEM
       unicode-display_width (>= 2.4.0, < 3.0)
     rubocop-ast (1.31.3)
       parser (>= 3.3.1.0)
-    rubocop-capybara (2.20.0)
+    rubocop-capybara (2.21.0)
       rubocop (~> 1.41)
     rubocop-factory_bot (2.26.1)
       rubocop (~> 1.61)