cidb: retry on exceptions with type name matching OperationalError

BUG=chromium:483654
TEST=None

Change-Id: I66433911713d874adccb45ff3e72e2a8cb9f916d
Reviewed-on: https://chromium-review.googlesource.com/281219
Trybot-Ready: Aviv Keshet <akeshet@chromium.org>
Tested-by: Aviv Keshet <akeshet@chromium.org>
Reviewed-by: Dan Shi <dshi@chromium.org>
Commit-Queue: Aviv Keshet <akeshet@chromium.org>
1 file changed