[WIP] Proposal to add a checkbox for "Is this a regression"

[joshdholtz]

⚠️ DO NOT MERGE YET ⚠️

Motivation

We get a slack notification when an issue has a title or body that contains regression which is 👍 but only if people know to actually put "regression" in the title or the body. I would like to propose adding a "checkbox" (see below) to the GitHub Issue Template for people to fill in the checkbox if it is a regression.

GitHub Issue Template Addition

<!-- Start regression question -->
### Is this a regression?
<!-- Only check yes if you are certain your issue was caused by the newest release -->
- [ ] Yes
<!-- End regression question -->

Other Thoughts

Possible Problems

This may introduce more alerts for regressions that aren't actually regressions but that might be okay so regressions are something that we definitely want to be aware of.

Other Possible Solutions

If we do not want to go this route of having a checkbox, we could simply add a comment like the following to the GitHub Issue Template.

<!-- Is this a regression? Did the newest version of fastlane cause your issue?>
<!-- If so, please put the word "regression" in the issue title -->