Revert "increase CI timeout"

This reverts commit f623cd2.

Author: gmaclennan

.github/workflows/node.yml

@@ -11,7 +11,7 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
-    timeout-minutes: 20
+    timeout-minutes: 10
     strategy:
       fail-fast: false
       matrix: