Bump docker/build-push-action from 4 to 5

Bumps [docker/build-push-action](https://github.com/docker/build-push-action) from 4 to 5.
- [Release notes](https://github.com/docker/build-push-action/releases)
- [Commits](docker/build-push-action@v4...v5)

---
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>

.github/workflows/atlas-image-build.yaml

@@ -54,7 +54,7 @@ jobs:
         username: ${{ github.actor }}
         password: ${{ secrets.GITHUB_TOKEN }}
     - name: Build and push
-      uses: docker/build-push-action@v4
+      uses: docker/build-push-action@v5
       with:
         context: "{{defaultContext}}:docker/mongodb-atlas"
         push: true

.github/workflows/kanister-image-build.yaml

@@ -57,7 +57,7 @@ jobs:
         username: ${{ github.actor }}
         password: ${{ secrets.GITHUB_TOKEN }}
     - name: Build and push
-      uses: docker/build-push-action@v4
+      uses: docker/build-push-action@v5
       with:
         context: "{{defaultContext}}:docker/build"
         push: true