upgraded pytest version to 8

[masterismail]

fixes #187

[anth-volk]

@masterismail I'm sorry, I didn't even realize this PR was open, as we don't monitor this repo's PRs as closely. Would you mind adding a changelog entry?

[masterismail]

No problem at all @anth-volk, I too did't realise that a test was failing. Now added a changelog entry.

[anth-volk]

Weirdly, these tests fail, claiming that the version you input already exists. Would you mind rebasing and pushing that? Sorry for the hassle.

[anth-volk]

We're having the same issue. To make sure, did you fully pull the live repo into your fork's master, then rebase off of that? I think that may be the issue here.

[masterismail]

We're having the same issue. To make sure, did you fully pull the live repo into your fork's master, then rebase off of that? I think that may be the issue here.

I had run .github/is-version-number-acceptable.sh guess that's causing the issue

[masterismail]

sorry for inconvinence, fixed this issue here #204