Update python-package.yml to have 15m as timeout

Author: wbarnha

.github/workflows/python-package.yml

@@ -111,7 +111,7 @@ jobs:
     needs:
       - build-sdist
     runs-on: ubuntu-latest
-    timeout-minutes: 10
+    timeout-minutes: 15
     strategy:
       fail-fast: false
       matrix: