Update Docker workflow to use 'latest' tag for image builds

Signed-off-by: Stephen Simpson <ssimpson89@users.noreply.github.com>

Author: ssimpson89

.github/workflows/docker-image-linux.yml

@@ -39,7 +39,7 @@ jobs:
           build-args: |
             ARCH=x86_64
           tags: |
-            ${{ env.REGISTRY }}/${{ env.GITHUBUSER }}/${{ env.IMAGE_NAME }}:amd64
+            ${{ env.REGISTRY }}/${{ env.GITHUBUSER }}/${{ env.IMAGE_NAME }}:latest
 
       - name: Build and push arm64
         uses: docker/build-push-action@v6
@@ -51,11 +51,4 @@ jobs:
           build-args: |
             ARCH=aarch64
           tags: |
-            ${{ env.REGISTRY }}/${{ env.GITHUBUSER }}/${{ env.IMAGE_NAME }}:arm64
-
-      - name: Create and push manifest
-        run: |
-          docker manifest create ${{ env.REGISTRY }}/${{ env.GITHUBUSER }}/${{ env.IMAGE_NAME }}:latest \
-            ${{ env.REGISTRY }}/${{ env.GITHUBUSER }}/${{ env.IMAGE_NAME }}:amd64 \
-            ${{ env.REGISTRY }}/${{ env.GITHUBUSER }}/${{ env.IMAGE_NAME }}:arm64
-          docker manifest push ${{ env.REGISTRY }}/${{ env.GITHUBUSER }}/${{ env.IMAGE_NAME }}:latest
+            ${{ env.REGISTRY }}/${{ env.GITHUBUSER }}/${{ env.IMAGE_NAME }}:latest