Added if condition to disable deployments on forks

Co-authored-by: Rick Staa <rick.staa@outlook.com>

.github/workflows/deploy-prep.yml

@@ -7,6 +7,7 @@ on:
 
 jobs:
   config:
+    if: github.repository == ‘anuraghazra/github-readme-stats’
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3