feature/Add Faculties to bug report

[rubuy-74]

Closes #616
Adding faculties as one of the labels in the Github for bug reports so it's easier to identify where the bug came from.

Review checklist

• Terms and conditions reflect the current change
• Contains enough appropriate tests
• If aimed at production, writes new summary in whatsnew/whatsnew-pt-PT
• Properly adds entry in changelog.md with the change
• If PR includes UI updates/additions, its description has screenshots
• Behavior is as expected
• Clean, well structured code

[brunogomes30]

Looks good, however it has code from another PR.

[bdmendes]

Since we are expanding bug report contents, it now makes sense to create a model. For example, you are forgetting here to submit the faculty to Sentry since data is being passed "raw" to the submitters and only the GH handler is querying the faculty. Passing the BugReport class solves this.

[bdmendes]

This is still not being sent to Sentry. Also, take a look at my suggestion above, about encapsulating the bug report data

[brunogomes30]

Looking very good, just a single comment