ci: update docker actions to resolve Node.js 20 deprecation

Bumps the following actions to their latest major versions to ensure 
compatibility with the Node.js 24 runtime requirement:
- docker/setup-buildx-action from v3 to v4
- docker/login-action from v3 to v4
- docker/build-push-action from v6 to v7

Author: denji

.github/workflows/docker-image.yml

@@ -61,23 +61,23 @@ jobs:
           image: tonistiigi/binfmt:qemu-v10.2.1-65
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
 
       - name: Login to GHCR
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Login to DockerHub
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
 
       - name: Build and push ${{ matrix.tag }}
-        uses: docker/build-push-action@v6
+        uses: docker/build-push-action@v7
         with:
           context: ${{ matrix.build_dir }}
           file: ${{ matrix.build_dir }}/${{ matrix.dockerfile }}
@@ -99,20 +99,20 @@ jobs:
       packages: write
     steps:
       - name: Login to GHCR
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
       - name: Login to DockerHub
-        uses: docker/login-action@v3
+        uses: docker/login-action@v4
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v3
+        uses: docker/setup-buildx-action@v4
 
       - name: Merge and push mainline-alpine manifest
         run: |