chore(deps): pin dependencies

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/setup-python	action	pinDigest	-> 65d7f2d
actions/upload-artifact	action	pinDigest	-> a8a3f3a
py-actions/flake8	action	pinDigest	-> 84ec672

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

👻 Immortal: This PR will be recreated if closed unmerged. Get config help if that's undesired.

---

• If you want to rebase/retry this PR, check this box

---

This PR has been generated by Mend Renovate. View repository job log here.

[github-actions]

Hey @renovate[bot]! 👋

Thank you for your contribution to the project. Please refer to the contribution rules for a quick overview of the process.

Make sure that this PR clearly explains:

• the problem being solved
• the best way a reviewer and you can test your changes

With submitting this PR you confirm that you hold the rights of the code added and agree that it will published under this LICENSE.

The following ChatOps commands are supported:

• /help: notifies a maintainer to help you out

Simply add a comment with the command in the first line. If you need to pass more information, separate it with a blank line from the command.

This message was generated automatically. You are welcome to improve it.

[renovate]

Edited/Blocked Notification

Renovate will not automatically rebase this PR, because it does not recognize the last commit author and assumes somebody else may have edited the PR.

You can manually request rebase by checking the rebase/retry box above.

⚠ Warning: custom changes will be lost.