ci: auto-cancel running wheel jobs

Author: henryiii

.github/workflows/wheels.yml

@@ -17,6 +17,10 @@ on:
     types:
       - published
 
+concurrency:
+  group: wheels-${{ github.head_ref }}
+  cancel-in-progress: true
+
 env:
   SETUPTOOLS_SCM_PRETEND_VERSION: ${{ github.event.inputs.overrideVersion }}
   CIBW_ENVIRONMENT: "PIP_PREFER_BINARY=1 SETUPTOOLS_SCM_PRETEND_VERSION=${{ github.event.inputs.overrideVersion }}"