ci: add concurrency groups (#363)

.github/workflows/benchmarks.yml

@@ -9,6 +9,11 @@ on:
     # * is a special character in YAML so you have to quote this string
     - cron:  '0 0 * * 1'
 
+# This allows a subsequently queued workflow run to interrupt previous runs
+concurrency:
+  group: "${{ github.workflow }}"
+  cancel-in-progress: true
+
 jobs:
   build:
     runs-on: ubuntu-latest

.github/workflows/ci.yml

@@ -2,6 +2,11 @@ name: Node.js CI
 
 on: [push, pull_request]
 
+# This allows a subsequently queued workflow run to interrupt previous runs
+concurrency:
+  group: "${{ github.workflow }} @ ${{ github.event.pull_request.head.label || github.head_ref || github.ref }}"
+  cancel-in-progress: true
+
 jobs:
   dependency-review:
     name: Dependency Review

.github/workflows/metrics.yml

@@ -6,6 +6,11 @@ on:
     branches:
       - master
 
+# This allows a subsequently queued workflow run to interrupt previous runs
+concurrency:
+  group: "${{ github.workflow }}"
+  cancel-in-progress: true
+
 jobs:
   build:
     runs-on: ubuntu-latest