ci: cancel outdated CI runs on new commits (#800)

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Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: asadali145 <52656433+asadali145@users.noreply.github.com>

Author: Copilot

.github/workflows/ci.yml

@@ -6,6 +6,9 @@ on:
   pull_request:
     branches:
     - '**'
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
 jobs:
   integration-tests:
     runs-on: ubuntu-latest