Removes default selection for User facing changes

[filipefurtad0]

What? Why?

Removes default selection for User facing changes (Changelog Category), from the GH pull request template.

As discussed here.

What should we test?

• green build.
• creating a PR should have no selected option for the Changelog Category (changes should only take effect after merging).

Release notes

Changelog Category (reviewers may add a label for the release notes):

• User facing changes
• API changes (V0, V1, DFC or Webhook)
• Technical changes only
• Feature toggled

The title of the pull request will be included in the release notes.

Dependencies

Documentation updates

[RachL]

thanks @filipefurtad0 🤗

[mkllnk]

If you don't apply a label to the PR, it still appears under User facing changes. So the checkbox and the label are not in sync. I think I'll add a commit to change that as well.

[mkllnk]

This should make sure that we don't forget to label a PR and it accidentally goes into user facing changes.

[rioug]

Looks good thanks !