Bump korthout/backport-action from 4.3.0 to 4.5.2

[dependabot]

Bumps korthout/backport-action from 4.3.0 to 4.5.2.

Release notes

Sourced from korthout/backport-action's releases.

Backport-action v4.5.2

What's Changed

Bug fix for [Summary comment incorrectly reports success when no target branches are found #629](korthout/backport-action#629). When the action runs but finds no targets (no matching labels and no target_branches input), the summary comment now explicitly states this instead of the misleading "backported this pull request". The comment also hints at filtering the trigger at the workflow level so the action runs only when there's work to do, and the README usage example now demonstrates that pattern with a label-prefix filter.

• Report no-targets outcome and recommend a workflow filter by @​korthout in korthout/backport-action#636

Documentation

The README grew a new section on computing target_branches dynamically at workflow runtime. You may need this when targets come from a config file, an API call, or a parsed /backport <branch> comment rather than labels. We also made some further improvements to the README examples. We collapsed the signing example into a <details> block, tightened the comment-trigger example, and bumped the actions/checkout to v6 across examples.

• Document dynamic target_branches and refresh README examples by @​korthout in korthout/backport-action#641

Updated dependencies

• Update korthout/backport-action action to v4.5.1 by @​renovate[bot] in korthout/backport-action#635
• Update dependency @​types/node to v24.12.3 by @​renovate[bot] in korthout/backport-action#638
• Lock file maintenance by @​renovate[bot] in korthout/backport-action#639

Full Changelog: korthout/backport-action@v4.5.1...v4.5.2

Backport-action v4.5.1

What's Changed

Bug fix for [comment_style: summary drops conflict-resolution instructions #633](korthout/backport-action#633)

• Post resolve-conflicts comment on draft PR in summary mode by @​korthout in korthout/backport-action#634

Updated dependencies

• Update korthout/backport-action action to v4.5.0 by @​renovate[bot] in korthout/backport-action#627
• Lock file maintenance by @​renovate[bot] in korthout/backport-action#632

Maintenance changes

• Enable summary comment style for our own backport workflow by @​korthout in korthout/backport-action#628

Full Changelog: korthout/backport-action@v4.5.0...v4.5.1

Backport-action v4.5.0

What's Changed

This release introduces a new comment_style input with two options:

• legacy (default): one comment per target branch. This is the same behavior as you know from previous versions.
• summary: a single comment per workflow run that updates progressively as each target is processed. It links back to the workflow run, shows a status table for every target, and includes recovery hints for known failure modes (e.g. push permission denied, cherry-pick conflicts).

Here's what a summary comment looks like mid-run:

Backport-action is backporting this pull request in workflow run 15439584062.

Target	Status
stable/8.7	✅ Created #612
stable/8.6	⚠️ Drafted with conflicts #613
stable/8.5	❌ Failed

... (truncated)

Commits

• 6606540 dist: release 4.5.2
• 413d257 Merge pull request #641 from korthout/docs/629-dynamic-target-branches-readme
• dbf3d7e Bump actions/checkout to v6 in README examples
• 0035616 Tighten signing section prose
• c3f172c Collapse signing example into a details block
• fae10fd Document computing target_branches dynamically at workflow runtime
• 6152bfa Drop obsolete bot-id filter from README workflow example
• 299312a Clarify target_branches works standalone or with labels
• 0356078 Document README/action.yml input-doc sync rule in CLAUDE.md
• 20acf50 Merge pull request #639 from korthout/renovate/lock-file-maintenance
• Additional commits viewable in compare view

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Note

Low Risk
Low risk: this only updates a GitHub Actions dependency in the backport workflow; behavior changes are limited to how backport results are reported/handled by the external action.

Overview
Updates the Backport GitHub Actions workflow to use korthout/backport-action@v4.5.2 (from v4.3.0) when creating backport PRs.

This pulls in upstream action fixes/improvements (e.g., clearer outcome reporting when no target branches are found) without changing this repo’s workflow logic or inputs.

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