Update release_pr.yml (#421)

update ruby/setup-ruby to fix broken links

Author: tylerjroach

.github/workflows/release_pr.yml

@@ -19,7 +19,7 @@ jobs:
         ref: ${{ env.BASE_BRANCH }}
         fetch-depth: 0
     - name: Set up Ruby
-      uses: ruby/setup-ruby@b8d447ba7506ac7e0c8fbc50762276fb3b7df731 # v1
+      uses: ruby/setup-ruby@8575951200e472d5f2d95c625da0c7bec8217c42 # v1
       with:
         ruby-version: 2.7
     - name: Install dependencies