fix: lowercase repo name in manifest

Author: shubham3121

.github/workflows/docker-publish.yml

@@ -86,7 +86,7 @@ jobs:
             PYTHON_VERSION=3.12
 
   manifest:
-    timeout-minutes: 10
+    timeout-minutes: 15
     needs: build
     runs-on: ubuntu-latest
     permissions:
@@ -111,6 +111,7 @@ jobs:
       - name: Create and push manifest
         run: |
           IMAGE="${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}"
+          IMAGE="${IMAGE,,}"  # Convert to lowercase
           SHA="${{ steps.sha.outputs.short }}"
 
           # Create manifest for commit SHA tag