Clean up bot account setup in integration tests

[h-vetinari]

In the aftermath of #6083, I think we can simplify

conda-forge-bot/tests_integration/lib/_definitions/base_classes.py

Lines 15 to 22 in f9aae5e

	class GitHubAccount(StrEnum):
	CONDA_FORGE_ORG = (
	os.environ.get("GITHUB_ACCOUNT_CONDA_FORGE_ORG") or "conda-forge-bot-staging"
	)
	BOT_USER = (
	os.environ.get("GITHUB_ACCOUNT_BOT_USER") or "regro-cf-autotick-bot-staging"
	)
	REGRO_ORG = os.environ.get("GITHUB_ACCOUNT_REGRO_ORG") or "regro-staging"

Already now, the integration tests are producing a kind of mismatch where one bot user is committing into the repos of another, c.f.

xref also conda-forge/conda-forge.github.io#2384

[ytausch]

Note that conda-forge-bot-staging is intended to mirror the conda-forge organization and regro-cf-autotick-bot-staging is intended to mirror the bot's own account: https://github.com/conda-forge/conda-forge-bot/blob/main/tests_integration/README.md

The split is intended to make the integration test environment resemble the real world as close as possible.

[h-vetinari]

Well, a lot of the bot metadata moved from the regro org to conda-forge in the context of #6083; and in the context of conda-forge/conda-forge.github.io#2384 we want to further unify these. It's fine if the work on the org & repos comes before the accounts here, of course

[ytausch]

I've seen that, and you are probably more familiar with the recent changes than me.
What I see though is that the bot's PRs still come from a fork of the bot. So I think regro-cf-autotick-bot-staging and conda-forge-bot-staging are still both justified to exist (merging their data into the conda-forge org is not a good idea permission-wise, IMO).

Where I agree is that regro-staging could be merged into conda-forge-bot-staging, just as it happened in the real orgs.

[h-vetinari]

What I see though is that the bot's PRs still come from a fork of the bot.

As a reflection of reality, the current setup is OK; long-term, we're free to imagine improvements, like unifying all those bots 🙃

(The reason I started looking at this is because I haven't been successful in debugging #6417; if you have thoughts about that, inputs would be more than welcome!)