Added a new tag for all images.

.drone.yml

@@ -19,10 +19,10 @@ steps:
       password:
         from_secret: gitea-password
       repo: ${DRONE_REPO_LINK:8}/ubuntu-22.04
+      extra_tags:
+        - ${DRONE_REPO_LINK:8}:22.04
       build_args_from_env:
         - UBUNTU_VER
-      extra_tags:
-        - ${DRONE_REPO_LINK:8}:${UBUNTU_VER}
       platforms:
         - linux/amd64
         - linux/arm64
@@ -41,6 +41,8 @@ steps:
     settings:
       <<: *settings
       repo: ${DRONE_REPO_LINK:8}/ubuntu-20.04
+      extra_tags:
+        - ${DRONE_REPO_LINK:8}:20.04
 
   - name: ubuntu_18
     image: thegeeklab/drone-docker-buildx:23
@@ -49,3 +51,5 @@ steps:
     settings:
       <<: *settings
       repo: ${DRONE_REPO_LINK:8}/ubuntu-18.04
+      extra_tags:
+        - ${DRONE_REPO_LINK:8}:18.04