increase test timeout

10 minutes doesn't seem to be enough on windows

Author: minrk

.github/workflows/test.yml

@@ -11,7 +11,7 @@ env:
 jobs:
   test:
     runs-on: ${{ matrix.runs_on || 'ubuntu-20.04' }}
-    timeout-minutes: 10
+    timeout-minutes: 15
 
     strategy:
       # Keep running even if one variation of the job fail