GH actions: re-run failed Tui tests

[MetRonnie]

The Tui integration tests are flakily failing quite a lot on GH Actions, so I've made it so that they re-run any failures.

Tried re-triggering several times, couldn't get it to fail 🤷‍♂️. Perhaps splitting it off from the other integration test run was enough.

Check List

• [x] I have read CONTRIBUTING.md and added my name as a Code Contributor.
• [x] Contains logically grouped changes (else tidy your branch by rebase).
• [x] Does not contain off-topic changes (use other PRs for other changes).
• [x] CI changes so none of the usual stuff
• [x] If this is a bug fix, PR should be raised against the relevant ?.?.x branch.

[oliver-sanders]

I haven't managed to get a handle on the Tui failures, they don't make much sense to me and are extremely hard to replicate.

Tried re-triggering several times, couldn't get it to fail

Are you suggesting the retry (pytest || pytest) isn't necessary, just splitting it out?

Might be worth looking into this:

https://pypi.org/project/pytest-retry/

[MetRonnie]

Are you suggesting the retry (pytest || pytest) isn't necessary, just splitting it out?

Yes, possibly

Might be worth looking into this: https://pypi.org/project/pytest-retry/

Can do but I just wanted to quickly bash this change out

[MetRonnie]

Merging with 1 approval as these failures are rather irritating. We can tweak this in future