use fallback instead of failing

plugin.sh

@@ -15,9 +15,12 @@ if [[ "${PLUGIN_GITEA_DOMAIN:-}" == "true" ]]; then
     echo "No api key provided";
     exit 1;
   fi
+  if [[ -n "${PLUGIN_REPO:-}"]]; then
+    PLUGIN_REPO=$CI_REPO_NAME
+  fi
 
   curl --request POST \
-  --url "https://$PLUGIN_GITEA_DOMAIN/api/v1/repos/$CI_REPO_NAME/releases" \
+  --url "https://$PLUGIN_GITEA_DOMAIN/api/v1/repos/$PLUGIN_REPO/releases" \
   --header "Content-Type: application/json" \
   --header "Authorization: token $PLUGIN_GITEA_APIKEY" \
   --data "{