Today while I was looking at a list of open pull requests I still had open on Github, I was surprised to see a pull request that had been opened 2 years ago that I did not recall authoring, so I clicked on the PR. Turns out, I did in fact write the pull request, and it went 2 years without so much as a comment, let alone a review from the project maintainers. This is also not the first time this has happened with my contributions to a third-party dependency I was using.
I understand the nature of open source, but I also find it negligent for some owners to abandon their projects without either archiving it or transferring ownership. I don't expect an owner to be actively developing code for their project, but reviewing the project once every 90/180/365 days? That's not a big ask, we all have 1 hour in that time we could spare to at least take a look.
There's a difference in the level of effort between fixing a broken dependency for my own need, and contributing a fix back to the dependency for everyone to benefit, so it's a true shame when those efforts can't even be acknowledged.
It looks to me like that repository has been abandoned. Most recent merged PR is about 2 years ago around time you opened yours. And there are PRs opened by dependabot 1 year ago that are still open.
There is a GitHub Action that is maintained by GitHub that does something similar and works well. So if you are looking for an alternative, check out:
Marks issues and pull requests that have not had recent interaction
Close Stale Issues and PRs
Warns and then closes issues and PRs that have had no activity for a specified amount of time.
The configuration must be on the default branch and the default values will:
Recommended permissions
For the execution of this action, it must be able to fetch all issues and pull requests from your repository.
In addition, based on the provided configuration, the action could require more permission(s) (e.g.: add label, remove label, comment, close, etc.).
This can be achieved with the following configuration in the action if the permissions are restricted: