chore(ci): tweak concurrency in builds

Author: boneskull

.github/workflows/lint.yml

@@ -1,6 +1,10 @@
 permissions:
   contents: read
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   lint:
     env:

.github/workflows/nodejs.yml

@@ -2,6 +2,10 @@ name: Node CI
 
 on: [push, pull_request]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   test:
     env: