.github/workflows: add welcome bot

[MrKevinWeiss]

Contribution description

To try to address #18563 I would like to add a welcome bot.
This should help give a bit more urgency to the first time contributors and show that is ok to ping people.

Testing procedure

Ya... turns out it is not too easy.

Issues/PRs references

Helps with #18563

[MrKevinWeiss]

Testing "locally" on my repo doesn't seem to work out well. I currently am hitting actions/first-interaction#10 issue.

Here are my test logs.

The other thing that may be an issue is requiring maintainer approval to run this workflow. This kind of makes a welcome message to be patient a bit worthless. We can change the settings to run ALL workflows of first time contributors (unless they have a newly created account) without approval.

It would be better to configure it to only run this one though.

maybe ping @miri64 ?

[miri64]

maybe ping @miri64 ?

What of those things was I pinged for?

[MrKevinWeiss]

General review. I feel you are the most knowledgeable GitHub actions person I know. If you are aware of a way we can test this then great, otherwise, does this make sense to merge in, as it is similar to the labeler workflow?

[miri64]

IIRC it is easiest to test Github Actions in your own fork. You can provide links to the actions / PRs you tested upon.

[miri64]

Suggested change

	As I mentioned before, we are human and sometimes we get distracted with life.
	As I mentioned before, we are human, many of us do this in our free time, and sometimes we get distracted with life.

?

[miri64]

If this is the same message as for issue-message, could you try setting it as an environment variable and use it here and for issue-message instead?

    - uses: actions/first-interaction@v1
      env:
        GREETER_MESSAGE: >
          Beep boop beep... I am a real human... for real.\n\n
          Welcome to the RIOT community, we will try to address this as soon as we can.
          As I mentioned before, we are human and sometimes we get distracted with life.
          I can try to ping someone like this.\n\n
          ping @MrKevinWeiss\n\n
          Feel free to do the same for other [maintainers](https://github.com/orgs/RIOT-OS/teams/maintainers/members) if things are taking a while.
      with:
        repo-token: ${{ secrets.GITHUB_TOKEN }}
        issue-message: ${{ env.GREETER_MESSAGE }}
        pr-message: ${{ env.GREETER_MESSAGE }}

[miri64]

You really want to use yourself as example? How about, e.g., @riot-ci instead?

[miri64]

IIRC it is easiest to test Github Actions in your own fork. You can provide links to the actions / PRs you tested upon.

Mh, just noticed: the action ran, so I am not sure what you were asking ^^

[MrKevinWeiss]

Thanks for taking a look, I will adapt!

Mh, just noticed: the action ran, so I am not sure what you were asking ^^

The problem is that it never worked (as well as is very hard to test first time contributors as I need a new contributor per test).

I thought maybe it is an issue of my personal repo settings or something. I will keep looking at it when I have time.

[MrKevinWeiss]

Hmm OK, shall we or should I close, I am doing a general cleanup.

[miri64]

Doesn't seem to work, so I am for closing...

[MrKevinWeiss]

Good good. Wasn't so easy to test.