run_tests.yaml in prop_check-0.18.2

- old
+ new

@@ -14,10 +14,10 @@
 
     runs-on: ubuntu-latest
     strategy:
       matrix:
         # NOTE: Ruby 3.2 is not in here, as `doctest-core` first needs to be updated to support it
-        ruby-version: ['2.6', '2.7', '3.0', '3.1']
+        ruby-version: ['2.6', '2.7', '3.0', '3.1', '3.2']
 
     steps:
     - uses: actions/checkout@v3
     - name: Set up Ruby
     # To automatically get bug fixes and new Ruby versions for ruby/setup-ruby,