ci: add concurrency groups to workflows (#31)

Add concurrency configuration to CI and release-please workflows
to prevent duplicate runs on the same branch/PR.

Author: amondnet

.github/workflows/ci.yml

@@ -6,6 +6,10 @@ on:
   pull_request:
     branches: [main]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 env:
   TURBO_TOKEN: ${{ secrets.TURBO_TOKEN }}
   TURBO_TEAM: ${{ secrets.TURBO_TEAM }}

.github/workflows/release-please.yml

@@ -5,6 +5,10 @@ on:
     branches:
       - main
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: false
+
 permissions:
   contents: write
   pull-requests: write