Bump docker/build-push-action from 3 to 4

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 3 to 4.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@v3...v4)

---
updated-dependencies:
- dependency-name: docker/build-push-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/ci-cd.yml

@@ -29,7 +29,7 @@ jobs:
           password: ${{ secrets.DOCKER_PASSWORD }}
 
       - name: Build and export to Docker
-        uses: docker/build-push-action@v3
+        uses: docker/build-push-action@v4
         with:
           context: ${{ matrix.version }}${{ matrix.type }}
           load: true
@@ -47,7 +47,7 @@ jobs:
           docker run -e ENABLE_XDEBUG=true kooldev/php:${{ matrix.version }}${{ matrix.type }} php -m
 
       - name: Build and push
-        uses: docker/build-push-action@v3
+        uses: docker/build-push-action@v4
         if: github.ref == 'refs/heads/master' && github.repository == 'kool-dev/docker-php'
         with:
           context: ${{ matrix.version }}${{ matrix.type }}
@@ -56,7 +56,7 @@ jobs:
           tags: kooldev/php:${{ matrix.version }}${{ matrix.type }}
 
       - name: Build and export to Docker (nginx)
-        uses: docker/build-push-action@v3
+        uses: docker/build-push-action@v4
         with:
           context: ${{ matrix.version }}-nginx${{ matrix.type }}
           load: true
@@ -77,7 +77,7 @@ jobs:
           docker run kooldev/php:${{ matrix.version }}-nginx${{ matrix.type }} supervisord version
 
       - name: Build and push (nginx)
-        uses: docker/build-push-action@v3
+        uses: docker/build-push-action@v4
         if: github.ref == 'refs/heads/master' && github.repository == 'kool-dev/docker-php'
         with:
           context: ${{ matrix.version }}-nginx${{ matrix.type }}