TA-4578: Add release notes functionality

[Buqeta (Buqeta)]

Description

Added a step that creates a GitHub release with auto-generated release notes after the package is published and tagged.
What it does:

• Creates a GitHub release using the tag created in the previous step (e.g., "v1.2.3")
• Points the release to the commit on master that triggered the workflow
• Auto-generates release notes from commits, PRs, and issues since the last release
• Publishes the release (not a draft or prerelease)

When it runs:

• After the package is published to both GitHub and NPM registries
• After the git tag is created and pushed
• Only when a version bump is detected on the master branch

Result: Each published version gets a GitHub release with auto-generated release notes, making it easier to track what changed in each version.

Relevant links

• Jira: https://celonis.atlassian.net/browse/TA-4578

Checklist

• I have self-reviewed this PR
• I have tested the change and proved that it works in different scenarios
• I have updated docs if needed

[sonarqubecloud]

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 SonarQube Cloud