build stable with stable tag

.gitlab-ci.yml

@@ -90,6 +90,16 @@ mergeManifests:
       entrypoint: [""]
   script:
     - >-
+      if test "$REGISTRY_PUSH_TAG" == "stable"; then
+        manifest-tool
+        --username=${CI_REGISTRY_USER}
+        --password=${CI_REGISTRY_PASSWORD}
+        push from-args
+        --platforms linux/amd64,linux/arm64
+        --tags ${REGISTRY_PUSH_VERSION},stable
+        --template ${CI_REGISTRY_IMAGE}:ARCH
+        --target ${CI_REGISTRY_IMAGE}:${REGISTRY_PUSH_TAG}
+      else
         manifest-tool
         --username=${CI_REGISTRY_USER}
         --password=${CI_REGISTRY_PASSWORD}
@@ -98,6 +108,7 @@ mergeManifests:
         --tags ${REGISTRY_PUSH_VERSION}
         --template ${CI_REGISTRY_IMAGE}:ARCH
         --target ${CI_REGISTRY_IMAGE}:${REGISTRY_PUSH_TAG}
+      fi
   only:
     - stable
     - develop