Update dependency python-gitlab to v6.5.0

This MR contains the following updates:

Package	Update	Change
python-gitlab (changelog)	minor	6.4.0 -> 6.5.0
python-gitlab (changelog)	minor	==6.4.0 -> ==6.5.0

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Release Notes

python-gitlab/python-gitlab (python-gitlab)

v6.5.0

Compare Source

Bug Fixes

• semantic-release: Enable CHANGELOG.md generation (fb9693b)

Continuous Integration

• stale: Fix permission for stale action and allow manual run (9357a37)

Documentation

• pull_mirror: Fix incorrect start() method usage example (2acac19)

Features

• api: Add content_ref and dry_run_ref parameters to ProjectCiLintManager (e8d2538)

• users: Implement 'skip_confirmation' in users 'emails' creation (2981730)

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