[CI] Cleanup logfile before tutorial runs (#4896)

diff --git a/tests/scripts/task_python_docs.sh b/tests/scripts/task_python_docs.sh
index 951d1a3..d463a61 100755 (executable)
--- a/tests/scripts/task_python_docs.sh
+++ b/tests/scripts/task_python_docs.sh
@@ -27,6 +27,9 @@ rm -rf docs/_build/html/javadoc
 rm -rf docs/tutorials
 rm -rf docs/vta/tutorials
 
+# cleanup stale log files
+find . -type f -path "*.log" | xargs rm -f
+
 # C++ doc
 make doc