fix automation

.github/dependabot.yml

@@ -1,7 +1,6 @@
 # Set update schedule for GitHub Actions
 version: 2
 updates:
-
   - package-ecosystem: "github-actions"
     directory: "/"
     schedule:

.github/workflows/docker-publish.yml

@@ -35,27 +35,7 @@ jobs:
           platforms: linux/amd64
           push: true
           tags: |
-            gameservermanagers/steamcmd:latest
-            gameservermanagers/steamcmd:ubuntu-22.04
-            ghcr.io/gameservermanagers/steamcmd:latest
-            ghcr.io/gameservermanagers/steamcmd:ubuntu-22.04
-      - name: Build and push (Ubuntu 20.04)
-        uses: docker/[email protected]
-        with:
-          context: .
-          file: ./Dockerfile.ubuntu-2004
-          platforms: linux/amd64
-          push: true
-          tags: |
-            gameservermanagers/steamcmd:ubuntu-20.04
-            ghcr.io/gameservermanagers/steamcmd:ubuntu-20.04
-      - name: Build and push (Ubuntu 18.04)
-        uses: docker/[email protected]
-        with:
-          context: .
-          file: ./Dockerfile.ubuntu-1804
-          platforms: linux/amd64
-          push: true
-          tags: |
-            gameservermanagers/steamcmd:ubuntu-18.04
-            ghcr.io/gameservermanagers/steamcmd:ubuntu-18.04
+            gameservermanagers/linuxgsm:latest
+            gameservermanagers/linuxgsm:ubuntu-22.04
+            ghcr.io/gameservermanagers/linuxgsm:latest
+            ghcr.io/gameservermanagers/linuxgsm:ubuntu-22.04