ci: clone repository from public Git URL

.woodpecker/release-backend.yml

@@ -2,6 +2,12 @@ when:
   - event: tag
     ref: refs/tags/v*
 
+clone:
+  git:
+    image: woodpeckerci/plugin-git:2.9.3
+    settings:
+      remote: https://git.oeo.one/justme/WebDrop.git
+
 steps:
   release-checks:
     image: mcr.microsoft.com/dotnet/sdk:10.0