Merge branch 'alpha' into add-node-16

Author: dblythy

.github/workflows/ci.yml

@@ -53,3 +53,6 @@ jobs:
       env:
         CI: true
     - run: bash <(curl -s https://codecov.io/bash)
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true