ci: upgrade some Docker actions

Author: indygreg

.github/workflows/linux.yml

@@ -63,10 +63,10 @@ jobs:
           python-version: '3.11'
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v2
+        uses: docker/setup-buildx-action@v3
 
       - name: Login to GitHub Container Registry
-        uses: docker/login-action@v2
+        uses: docker/login-action@v3
         with:
           registry: ghcr.io
           username: ${{ github.actor }}
@@ -82,7 +82,7 @@ jobs:
 
       - name: Build Image
         id: build-image
-        uses: docker/build-push-action@v4
+        uses: docker/build-push-action@v5
         with:
           context: .
           file: build/${{ matrix.image }}.Dockerfile