ci: replace weekly_ci with periodic_ci, stagger schedules [citest_skip]

[richm]

Rename the weekly CI trigger workflow to periodic_ci. The name better
reflects that this is for recurring CI, not necessarily weekly.

Stagger the scheduled start times so that roles do not all compete for
the limited github action job capacity at once. The first role starts
Saturday 02:00 UTC, and each subsequent role starts one hour later, with
an extra hour after ha_cluster, snapshot, and storage because those tests
typically take longer.

Periodic CI is disabled by default. Set the repository or organization
variable ENABLED to true to enable it. We don't currently use it.
We may enable it in the future.

Signed-off-by: Rich Megginson [email protected]

[coderabbitai]

Important

Review skipped

Ignore keyword(s) in the title.

⛔ Ignored keywords (1)

• [citest_skip]

Please check the settings in the CodeRabbit UI or the .coderabbit.yaml file in this repository. To trigger a single review, invoke the @coderabbitai review command.

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Team

Run ID: bdbab5ac-a674-46cf-b235-acf935ffc56f

You can disable this status message by setting the reviews.review_status to false in the CodeRabbit configuration file.

Use the checkbox below for a quick retry:

• 🔍 Trigger review

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}