ci: convert semantic pr title check to use action

[thephez]

Issue being fixed or feature implemented

The previously used service https://github.com/zeke/semantic-pull-requests was deprecated by the time we actually updated the master branch. This converts to using a GitHub action to enforce conventional commit syntax for PR titles in alignment with our contributing guide.

Notes

• This will only run once it is in the default branch. Any updates to the configuration also will not be effective until they are merged into the default branch.
• There is a discussion regarding the security of this at Security concern with using pull_request_target amannn/action-semantic-pull-request#182. As I understand it, this shouldn't introduce any issues.

What was done?

Although the contributing guide indicated conventional commit syntax should be used for PR titles, nothing was enforcing it. This PR adds a GitHub Action (semantic-pull-request) that checks PR titles to make sure they match the relevant format and type/scope criteria.

How Has This Been Tested?

Tested using thephez#5 in my fork of this repo. See https://github.com/thephez/dash/actions/workflows/semantic-pull-request.yml for results of various attempts.

Breaking Changes

N/A

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have added or updated relevant unit/integration/functional/e2e tests
• I have made corresponding changes to the documentation

For repository code-owners and collaborators only

• I have assigned this pull request to a milestone (recommend the next release)

[thephez]

It's possible to eliminate the scopes section here. In that case it would check the types, but allow any scope. I don't think we want to do that, but it's an option 🤷‍♂️

[UdjinM6]

utACK

[PastaPastaPasta]

utACK for squash merge