Bump rubocop-rails from 2.26.0 to 2.26.1 (#678)

Bumps [rubocop-rails](https://github.com/rubocop/rubocop-rails) from 2.26.0 to 2.26.1.
- [Release notes](https://github.com/rubocop/rubocop-rails/releases)
- [Changelog](https://github.com/rubocop/rubocop-rails/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop-rails@v2.26.0...v2.26.1)

---
updated-dependencies:
- dependency-name: rubocop-rails
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

Gemfile.lock

@@ -208,7 +208,7 @@ GEM
       iniparse (~> 1.4)
       rexml (~> 3.2)
     parallel (1.26.3)
-    parser (3.3.4.2)
+    parser (3.3.5.0)
       ast (~> 2.4.1)
       racc
     prometheus_exporter (2.1.1)
@@ -317,9 +317,9 @@ GEM
       rubocop-ast (>= 1.32.1, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 2.4.0, < 3.0)
-    rubocop-ast (1.32.1)
+    rubocop-ast (1.32.3)
       parser (>= 3.3.1.0)
-    rubocop-rails (2.26.0)
+    rubocop-rails (2.26.1)
       activesupport (>= 4.2.0)
       rack (>= 1.1)
       rubocop (>= 1.52.0, < 2.0)