Update action.yml to use specific commit of create-pull-request action

Author: robfrank

action.yml

@@ -72,7 +72,7 @@ runs:
     - name: Create Pull Request
       id: create-pr
       if: inputs.create-pr == 'true' && steps.check.outputs.updates-available == 'true'
-      uses: peter-evans/create-pull-request@v7.0.8
+      uses: peter-evans/create-pull-request@271a8d0340265f705b14b6d32b9829c1cb33d45e # v7.0.8
       with:
         token: ${{ inputs.github-token }}
         branch: ${{ inputs.pr-branch }}