Bump docker/login-action from v1.4.1 to v1.6.0 (#198)

Bumps [docker/login-action](https://github.com/docker/login-action) from v1.4.1 to v1.6.0.
- [Release notes](https://github.com/docker/login-action/releases)
- [Commits](https://github.com/docker/login-action/compare/v1.4.1...adb73476b6e06caddec5db0bc1deacbec8cdd947)

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

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

.github/workflows/build.yml

@@ -117,7 +117,7 @@ jobs:
       -
         name: Login to DockerHub
         if: github.event_name != 'pull_request'
-        uses: docker/login-action@v1.4.1
+        uses: docker/login-action@v1.6.0
         with:
           username: ${{ secrets.DOCKER_USERNAME }}
           password: ${{ secrets.DOCKER_PASSWORD }}