Add concurrency groups to GitHub Actions workflows (#721)

Valery Kharseko

14 hours ago b4313acc0f6709e24561be01fcb2f39be480a357

 .github/workflows/build.yml

@@ -19,6 +19,10 @@
    branches: [ 'sustaining/4.10.x','master', 'issues/**', 'features/**' ]
  pull_request:

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  build-maven:
    runs-on: ${{ matrix.os }}