:arrow_up: Updates tibdex/backport action to v2

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
tibdex/backport	action	major	v1 -> v2

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Release Notes

tibdex/backport

### [`v2`](https://togithub.com/tibdex/backport/compare/v1...v2) [Compare Source](https://togithub.com/tibdex/backport/compare/v1...v2)

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Pull request by bot. No need to analyze

[github-actions[bot]]

Thanks for the PR!

This section of the codebase is owner by https://github.com/AlexRogalskiy/ - if they write a comment saying "LGTM" then it will be merged.

[github-actions[bot]]

🏷️ [bumpr] Next version:v2.19.1 Changes:v2.19.0...AlexRogalskiy:renovate/tibdex-backport-2.x

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