Precommit: ensure executable bit is set (#29784)

* precommit ensure executable

* exclude tinygrad

* bump submodules

* exclude tinygrad globally

system/hardware/tici/amplifier.py

@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 import time
 from smbus2 import SMBus
 from collections import namedtuple

system/ubloxd/tests/test_ublox_processing.py

@@ -1,3 +1,4 @@
+#!/usr/bin/env python3
 import unittest
 import time
 import numpy as np