ci: add concurrency cancellation across GitHub workflows

.github/workflows/check-renovate.yaml

@@ -14,6 +14,10 @@ on:
         required: false
         default: false
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   renovate:
     runs-on: ubuntu-latest

.github/workflows/copilot-collections-update.yaml

@@ -4,6 +4,10 @@ on:
     - cron: "0 9 * * 1" # Run every Monday at 09:00 UTC
   workflow_dispatch:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   check-update:
     # Pinned to @main to get the latest logic, but the content version is controlled by .github/.copilot-collections.yaml

.github/workflows/policy.yaml

@@ -7,6 +7,10 @@ on:
       - hotfix/*
       - work/check-policy # For development
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   filter:
     runs-on: ubuntu-slim

.github/workflows/qa.yaml

@@ -10,6 +10,10 @@ on:
   pull_request:
   merge_group:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   filter:
     runs-on: ubuntu-slim

.github/workflows/release-publish.yaml

@@ -6,6 +6,10 @@ on:
       # https://github.com/canonical/starbase/settings/tag_protection
       - "[0-9]+.[0-9]+.[0-9]+"
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: false
+
 permissions:
   contents: write
 

.github/workflows/schema.yaml

@@ -1,6 +1,10 @@
 name: Schema
 on: [pull_request]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 env:
   CHARMCRAFT_JSON: schema/charmcraft.json
 

.github/workflows/spread-docs.yaml

@@ -16,6 +16,10 @@ on:
   schedule:
     - cron: "0 0 * * 0" # Midnight UTC on Sundays
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   snap-build:
     runs-on: [self-hosted, linux, amd64, noble, medium]

.github/workflows/spread.yaml

@@ -44,6 +44,10 @@ on:
   schedule:
     - cron: "0 0 */2 * *"
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   snap-build:
     runs-on: ubuntu-24.04

.github/workflows/tests.yaml

@@ -49,6 +49,10 @@ on:
   # Allows you to run this workflow manually from the Actions tab
   workflow_dispatch:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   snap-build:
     runs-on: ubuntu-24.04

.github/workflows/tics.yaml

@@ -16,6 +16,10 @@ on:
       - "*.md" # Only top-level Markdown files
       - spread.yaml
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   TICS:
     uses: canonical/starflow/.github/workflows/tics.yaml@main