update (#25)

Author: larshp

.github/workflows/build.yml

@@ -2,6 +2,8 @@ name: build
 
 on:
   push:
+    branches:
+      - main
   pull_request:
   workflow_dispatch:
 
@@ -13,10 +15,8 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 10
     steps:
-    - uses: actions/checkout@v3
-    - uses: actions/setup-node@v3
-      with:
-        node-version: 20
+    - uses: actions/checkout@v4
+    - uses: actions/setup-node@v4
     - run: npm install
     - run: npm test
     - name: Update abapedia.org