chore: env vars instead text

Author: vwency

.github/workflows/delete-old-image.yaml

@@ -6,7 +6,8 @@ on:
         - main  
 
 jobs:
- 
+  
+
   trigger-build:
     uses: multi-repo/workflows/.github/workflows/kaniko-build.yaml@main
     with:
@@ -17,7 +18,7 @@ jobs:
   trigger-cleanup:
       uses: multi-repo/workflows/.github/workflows/clean-registry.yaml@main
       with:
-        owner: multi-repo
+        owner: ${{ github.repository_owner }}
         repository: redis 
         package: redis/redis
         keep_n_tagged: 2