Refactor execute_request to reduce redundancy and improve consistency

[jjvraw]

After reviewing #1169 again, this is somewhat a small continuation of the PR. The changes in _accepts_parameters, which now checks for two parameters, it seems redundant to verify the signature of do_execute for every cell execution request.

In addition, I just moved cell_meta and cell_id amongst the other do_execute parameter assignments for consistency.

[blink1073]

Thanks!

[blink1073]

Tests failures are unrelated: pytest-dev/pytest-asyncio#701

[jjvraw]

Sure :) I was unsure regarding the INTERNALERRORs hence the re-trigger, and was going to look into it tomorrow. But I now see the opened issue.

[blink1073]

Let's try pinning the test dep to see if it clears up the failures, I'm not sure about the debugpy failure. I'll push a commit.

[blink1073]

Ah, it looks like I can't make that push.

[jjvraw]

Apologies @blink1073 ! However, I noticed pytest-dev/pytest-asyncio#701 has just been resolved with v0.23.1. So, I rather just quickly pushed another empty commit to trigger with the new version.

Thanks for the quick resolve @seifertm !