Update mikepenz/release-changelog-builder-action action to v6

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
mikepenz/release-changelog-builder-action	action	major	v2 → v6

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Release Notes

mikepenz/release-changelog-builder-action (mikepenz/release-changelog-builder-action)

v6

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• no changes

v5

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• no changes

v4

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🐛 Fixes

• Fallback to alternative author value if main commit author login is not available
  • PR: #​1332

💬 Other

• Enhance error log in case of a fatal error building the changelog
  • PR: #​1333

📦 Dependencies

• Upgrade dependencies on the 4.x variant
  • PR: #​1330

v3

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📦 Dependencies

• Security update v3
  • PR: #​1264

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Configuration

📅 Schedule: (UTC)

• Branch creation
  • At any time (no schedule defined)
• Automerge
  • At any time (no schedule defined)

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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• If you want to rebase/retry this PR, check this box

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