add support for gitlab issue button

[akhmerov]

Source for confirming that the format is correct: https://docs.gitlab.com/ee/user/project/issues/create_issues.html#using-a-url-with-prefilled-values

[akhmerov]

I don't understand the CI failures, and the testing guide doesn't quite help.

EDIT: was my mistake, I figured it out.

[akhmerov]

Lighthouse failure seems unrelated, the rest of the tests are passing.

[agoose77]

@akhmerov thanks for this! Would you be willing to add some tests for this? Probably looking for something similar to this test

[akhmerov]

I've updated the test, however I can't figure out how to update the reference html files. Do you have any pointers?

[akhmerov]

Should be ready now.

[akhmerov]

Checking so that I don't forget about this PR; @agoose77 can you please take a look if the test is satisfactory?

[akhmerov]

@choldgraf I saw you're bumping versions in the repo. This PR should be rather straightforward and it's ready to merge 🙏 👀

[choldgraf]

Looks good to me - thanks for the ping!

[houqp]

hi, any plan to cut a new release to include this feature?