runtime(indent-tests): Raise timeouts for "search*()"es

Related to #15974 and #16870.

closes: #17116

Signed-off-by: Aliaksei Budavei <0x000c70@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/indent/testdir/python.in b/runtime/indent/testdir/python.in
index 57719ee..1f7654a 100644
--- a/runtime/indent/testdir/python.in
+++ b/runtime/indent/testdir/python.in
@@ -1,6 +1,8 @@
 # vim: set ft=python sw=4 et:
 
 # START_INDENT
+# INDENT_EXE let g:pyindent_searchpair_timeout = 256
+# INDENT_EXE runtime autoload/python.vim
 dict = {
 'a': 1,
 'b': 2,