[leoafarias]

Description

New pushes currently leave superseded pull-request runs executing. Cancel older runs of each changed workflow for the same PR so runner time is spent on the latest commit. Other PRs and non-PR runs retain their existing behavior.

• .github/workflows/pr.yml

Related Issues

No linked issue; CI maintenance.

Checklist

• Workflow YAML and structural checks passed; validation details below.
• Live cancellation and applicable CI verified.
• Documentation and changelog updates are not applicable to this workflow-only change.

Breaking Change

• Yes, this is a breaking change.
• No, this is not a breaking change.

Validation

• YAML parsing and structural comparison passed: only concurrency changed.
• git diff --no-index --check found no whitespace errors.
• actionlint -shellcheck= -pyflakes= passed for every changed workflow.

Application suites were not run locally for this workflow-only patch. Keep this PR in draft until applicable CI completes. Live cancellation behavior remains to be checked by pushing again while a PR run is active; a pull_request_target workflow uses the base-branch definition until this change is merged.

CI verification snapshot

All reported checks for commit 0abb30cfa18d0235da006e1164b7d135d7de97cb have completed successfully or were intentionally skipped, as of 2026-09-11T16:04:44+00:00. No failing or pending checks were reported.

[github-actions]

LCOV of commit 0abb30c during Flutter CI #315

	(use "lcov --ignore-errors deprecated,deprecated ..." to suppress this warning)
Reading tracefile /tmp/__zgosalvez_github-actions-report-lcov/lcov.info.
Summary coverage rate:
  source files: 24
  lines.......: 90.5% (3304 of 3651 lines)
  functions...: no data found
  branches....: no data found
Message summary:
  1 warning message:
    deprecated: 1

Files changed coverage rate: n/a