Bump rubocop from 1.26.0 to 1.26.1

Bumps [rubocop](https://github.com/rubocop/rubocop) from 1.26.0 to 1.26.1.
- [Release notes](https://github.com/rubocop/rubocop/releases)
- [Changelog](https://github.com/rubocop/rubocop/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop@v1.26.0...v1.26.1)

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

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

Gemfile.lock

@@ -13,7 +13,7 @@ GEM
     diffy (3.4.0)
     method_source (1.0.0)
     minitest (5.15.0)
-    parallel (1.21.0)
+    parallel (1.22.1)
     parser (3.1.1.0)
       ast (~> 2.4.1)
     pry (0.13.1)
@@ -26,7 +26,7 @@ GEM
     rake (13.0.6)
     regexp_parser (2.2.1)
     rexml (3.2.5)
-    rubocop (1.26.0)
+    rubocop (1.26.1)
       parallel (~> 1.10)
       parser (>= 3.1.0.0)
       rainbow (>= 2.2.2, < 4.0)