Bump rubocop from 1.56.3 to 1.57.2

Bumps [rubocop](https://github.com/rubocop/rubocop) from 1.56.3 to 1.57.2.
- [Release notes](https://github.com/rubocop/rubocop/releases)
- [Changelog](https://github.com/rubocop/rubocop/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop@v1.56.3...v1.57.2)

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

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

Gemfile.lock

@@ -16,7 +16,6 @@ GEM
   remote: https://rubygems.org/
   specs:
     ast (2.4.2)
-    base64 (0.1.1)
     concurrent-ruby (1.1.10)
     docopt (0.6.1)
     domain_name (0.5.20190701)
@@ -45,39 +44,38 @@ GEM
     opus-ruby (1.0.1)
       ffi
     parallel (1.23.0)
-    parser (3.2.2.3)
+    parser (3.2.2.4)
       ast (~> 2.4.1)
       racc
     racc (1.7.1)
     rainbow (3.1.1)
-    regexp_parser (2.8.1)
+    regexp_parser (2.8.2)
     rest-client (2.1.0)
       http-accept (>= 1.7.0, < 2.0)
       http-cookie (>= 1.0.2, < 2.0)
       mime-types (>= 1.16, < 4.0)
       netrc (~> 0.8)
     rexml (3.2.6)
-    rubocop (1.56.3)
-      base64 (~> 0.1.1)
+    rubocop (1.57.2)
       json (~> 2.3)
       language_server-protocol (>= 3.17.0)
       parallel (~> 1.10)
-      parser (>= 3.2.2.3)
+      parser (>= 3.2.2.4)
       rainbow (>= 2.2.2, < 4.0)
       regexp_parser (>= 1.8, < 3.0)
       rexml (>= 3.2.5, < 4.0)
       rubocop-ast (>= 1.28.1, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 2.4.0, < 3.0)
-    rubocop-ast (1.29.0)
+    rubocop-ast (1.30.0)
       parser (>= 3.2.1.0)
     ruby-enum (0.9.0)
       i18n
     ruby-progressbar (1.13.0)
     unf (0.1.4)
       unf_ext
     unf_ext (0.0.8.2)
-    unicode-display_width (2.4.2)
+    unicode-display_width (2.5.0)
     websocket (1.2.9)
     websocket-client-simple (0.6.1)
       event_emitter