Update README and cleanup script to use v1 of the action

Author: luispabon

.github/workflows/cleanup.yaml

@@ -23,7 +23,7 @@ jobs:
           days-before-stale: 30
           days-before-close: 7
 
-      - uses: phpdocker-io/github-actions-delete-abandoned-branches@0.3
+      - uses: phpdocker-io/github-actions-delete-abandoned-branches@1
         with:
           github_token: ${{ github.token }}
           last_commit_age_days: 100

README.md

@@ -58,7 +58,7 @@ jobs:
     name: Satisfy my repo CDO
     steps:
       - name: Delete those pesky dead branches
-        uses: phpdocker-io/github-actions-delete-abandoned-branches@0.3
+        uses: phpdocker-io/github-actions-delete-abandoned-branches@1
         id: delete_stuff
         with:
           github_token: ${{ github.token }}