Bump rubocop from 1.33.0 to 1.34.0

Bumps [rubocop](https://github.com/rubocop/rubocop) from 1.33.0 to 1.34.0.
- [Release notes](https://github.com/rubocop/rubocop/releases)
- [Changelog](https://github.com/rubocop/rubocop/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop@v1.33.0...v1.34.0)

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

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

gems.locked

@@ -99,17 +99,17 @@ GEM
       rspec-core (> 3.3)
     rspec-support (3.11.0)
     rspec_passed_time_formatter (0.2.0)
-    rubocop (1.33.0)
+    rubocop (1.34.0)
       json (~> 2.3)
       parallel (~> 1.10)
-      parser (>= 3.1.0.0)
+      parser (>= 3.1.2.1)
       rainbow (>= 2.2.2, < 4.0)
       regexp_parser (>= 1.8, < 3.0)
       rexml (>= 3.2.5, < 4.0)
-      rubocop-ast (>= 1.19.1, < 2.0)
+      rubocop-ast (>= 1.20.0, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 1.4.0, < 3.0)
-    rubocop-ast (1.20.1)
+    rubocop-ast (1.21.0)
       parser (>= 3.1.1.0)
     rubocop-performance (1.14.3)
       rubocop (>= 1.7.0, < 2.0)