[DEVX] Fix branch for release-drafter + don't publish internal changes in changelog

[carine-bonnafous]

Reason for change

• Ensure release-drafter runs on develop branch to fetch the right changes
• Ensure that the release drafted points to a main commit when published
• Add pr-labeler workflow to add category labels on pull request
• Exclude pr with internal changes or with label skip-changelog from the changelog

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud