Bump docker/login-action from 2 to 3 (#37)

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/docker-builds.yml

@@ -33,7 +33,7 @@ jobs:
       # Set up Docker Buildx - to use cache-from and cache-to argument of buildx command
       - uses: docker/setup-buildx-action@v3
       - name: Login to DockerHub
-        uses: docker/login-action@v2
+        uses: docker/login-action@v3
         if: github.ref == 'refs/heads/master'
         with:
           username: ${{ secrets.DOCKER_USERNAME }}