Remove md5sum for versions.yml file

[mirpedrol]

Remove md5sum for versions.yml file when using create_test_yml

PR checklist

• This comment contains a description of changes (with reason)
• CHANGELOG.md is updated
• If you've fixed a bug or added code that should be tested, add tests!
• Documentation in docs is updated

[FriederikeHanssen]

I am not sure why the branch protection test is failing after changing to dev branch

[ewels]

I am not sure why the branch protection test is failing after changing to dev branch

It always needs a new commit (push or rebase) to run properly again and pass

[ewels]

Very minor style suggestion, otherwise looks great! (I haven't tested locally, but looks safe enough).

Also added a comment about an opportunity to do a bit of refactoring 👀 😅

[ewels]

ooh, let's try this out! @nf-core-bot fix linting

[ewels]

hah, of course. Needs to be on the default branch so we can't actually test that until we do a release 🤦🏻

Ok, you need to fix the Python black linting yourself this time then sorry 😅 (but looks like you have a syntax error, so likely the error is due to that)

[ewels]

LGTM, thanks!