scripts: run_tests: set default log level to notice

BUG=None
TEST=CQ passes

Change-Id: I97e301d9323b6fc22887617804bf4acd692bbc61
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/chromite/+/4864108
Tested-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Tim Bain <tbain@google.com>
Commit-Queue: Tim Bain <tbain@google.com>
Auto-Submit: Mike Frysinger <vapier@chromium.org>
diff --git a/scripts/run_tests.py b/scripts/run_tests.py
index ca461fa..84ae1b7 100644
--- a/scripts/run_tests.py
+++ b/scripts/run_tests.py
@@ -152,6 +152,7 @@
     parser = commandline.ArgumentParser(
         description=__doc__,
         epilog="To see the help output for pytest:\n$ %(prog)s -- --help",
+        default_log_level="notice",
     )
     parser.add_argument(
         "-j",