chore(deps): update zeebe-io/backport-action action to v4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
zeebe-io/backport-action	action	major	v3.4.1 -> v4.0.1

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Release Notes

zeebe-io/backport-action (zeebe-io/backport-action)

v4.0.1: Backport-action v4.0.1

Compare Source

What's Changed

This patch fixes a bug where environment variables were no longer passed to git since v4.0.0. For instance, this prevented the action to sign commits with GPG using variables like GNUPGHOME. With this fix, environment variables are provided to git again.

• fix: pass existing environment variables when executing git by @​yafanasiev in korthout#527

Full Changelog: korthout/backport-action@v4.0.0...v4.0.1

v4.0.0: Backport-action v4.0.0

Compare Source

What's Changed

The action now requires Node 24 to run, which is a breaking change. Runner version 2.327.1 or higher is required from now on.

• Use node 24 by @​korthout in korthout#523

Other changes

• refactor: use @​actions/exec instead of execa by @​yafanasiev in korthout#510
• Prepare for v4 release by @​korthout in korthout#524

Updated dependencies

• Update dependency ts-jest to v29.4.5 by @​renovate[bot] in korthout#511
• Update dependency ts-jest to v29.4.6 by @​renovate[bot] in korthout#520
• Update dependency prettier to v3.7.4 by @​renovate[bot] in korthout#517
• Update dependency @​actions/core to v2 by @​renovate[bot] in korthout#521
• Update dependency @​actions/exec to v2 by @​renovate[bot] in korthout#522

Full Changelog: korthout/backport-action@v3.4.1...v4.0.0

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