Upgrade docker/build-push-action from v4 to v5.

.github/workflows/mariadb.yml

@@ -58,7 +58,7 @@ jobs:
           username: matthewbaggett
           password: ${{ secrets.GHCR_PASSWORD }}
 
-      - uses: docker/build-push-action@v4
+      - uses: docker/build-push-action@v5
         name: Build & Push
         with:
           context: mariadb

.github/workflows/mqtt.yml

@@ -52,7 +52,7 @@ jobs:
           username: matthewbaggett
           password: ${{ secrets.GHCR_PASSWORD }}
 
-      - uses: docker/build-push-action@v4
+      - uses: docker/build-push-action@v5
         name: Build & Push
         with:
           context: mqtt

.github/workflows/postgres.yml

@@ -97,7 +97,7 @@ jobs:
             type=raw,value=${{ matrix.version }}${{ matrix.alpine }},enable=true
 
       - name: "Docker: Build & Push"
-        uses: docker/build-push-action@v4
+        uses: docker/build-push-action@v5
         with:
           context: postgres
           platforms: ${{ env.ACT && 'linux/amd64' || 'linux/amd64,linux/arm64' }}