Cancel in progress CI workflows after new pushes (#1481)

Create a concurreny group which will cancel in progress workflows after
new pushes to pull requests or python-kasa branches.

.github/workflows/ci.yml

@@ -14,6 +14,10 @@ on:
       - 'janitor/**'
   workflow_dispatch:  # to allow manual re-runs
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 env:
   UV_VERSION: 0.4.16
 

.github/workflows/codeql-analysis.yml

@@ -15,6 +15,10 @@ on:
   schedule:
     - cron: '44 17 * * 3'
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   analyze:
     name: Analyze