Bump rubocop-ast from 1.31.3 to 1.32.0

Bumps [rubocop-ast](https://github.com/rubocop/rubocop-ast) from 1.31.3 to 1.32.0.
- [Release notes](https://github.com/rubocop/rubocop-ast/releases)
- [Changelog](https://github.com/rubocop/rubocop-ast/blob/master/CHANGELOG.md)
- [Commits](rubocop/rubocop-ast@v1.31.3...v1.32.0)

---
updated-dependencies:
- dependency-name: rubocop-ast
  dependency-type: indirect
  update-type: version-update:semver-minor
...

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

Gemfile.lock

@@ -35,7 +35,7 @@ GEM
       iniparse (~> 1.4)
       rexml (~> 3.2)
     parallel (1.26.2)
-    parser (3.3.4.0)
+    parser (3.3.4.2)
       ast (~> 2.4.1)
       racc
     public_suffix (6.0.1)
@@ -69,7 +69,7 @@ GEM
       rubocop-ast (>= 1.31.1, < 2.0)
       ruby-progressbar (~> 1.7)
       unicode-display_width (>= 2.4.0, < 3.0)
-    rubocop-ast (1.31.3)
+    rubocop-ast (1.32.0)
       parser (>= 3.3.1.0)
     rubocop-performance (1.21.1)
       rubocop (>= 1.48.1, < 2.0)