Change: Migrate release changelog generation from Pontos to git-cliff

[easamoah7]

What:
Replaced Pontos-based changelog generation with git-cliff in release workflows.

Why:
To standardize and automate changelog generation, and remove the Pontos dependency.

How:

• Updated release workflows to use git-cliff.
• Removed Pontos references and config files.
• Verified changelog output and workflow execution.

Checklist:

• Pontos removed
• git-cliff added & tested
• Docs updated

JIRA: DOS-371

[github-actions[bot]]

Dependency Review

The following issues were found:

• ✅ 0 vulnerable package(s)
• ✅ 0 package(s) with incompatible licenses
• ✅ 0 package(s) with invalid SPDX license definitions
• ⚠️ 1 package(s) with unknown licenses.

See the Details below.

License Issues

.github/workflows/release.yml

Package	Version	License	Issue Type
greenbone/actions/uv	3.*.*	Null	Unknown License

Allowed Licenses: 0BSD, AGPL-3.0-or-later, Apache-2.0, BlueOak-1.0.0, BSD-2-Clause, BSD-3-Clause-Clear, BSD-3-Clause, BSL-1.0, CAL-1.0, CC-BY-3.0, CC-BY-4.0, CC-BY-SA-4.0, CC0-1.0, EPL-2.0, GPL-1.0-or-later, GPL-2.0-only, GPL-2.0-or-later, GPL-2.0, GPL-3.0-only, GPL-3.0-or-later, GPL-3.0, ISC, LGPL-2.0-only, LGPL-2.0-or-later, LGPL-2.1-only, LGPL-2.1-or-later, LGPL-2.1, LGPL-3.0-only, LGPL-3.0, LGPL-3.0-or-later, MIT, MIT-CMU, MPL-1.1, MPL-2.0, OFL-1.1, PSF-2.0, Python-2.0, Python-2.0.1, Unicode-DFS-2016, Unlicense, Zlib, ZPL-2.1

OpenSSF Scorecard

Package	Version	Score	Details
actions/greenbone/actions/uv	3.*.*	Unknown	Unknown

Scanned Files

• .github/workflows/release.yml

[henning]

This is just a comment so this is not merged on accident.

@ArnoStiefvater isn't that what drafts are for? Or is that not an option here(convert to draft)?