Pytest: consistent codecov (#30408)

* seed only

* random seed

* ignore version.py

* increase max examples

* increase default max examples

conftest.py

@@ -1,5 +1,6 @@
 import os
 import pytest
+import random
 
 from openpilot.common.prefix import OpenpilotPrefix
 from openpilot.system.hardware import TICI
@@ -9,6 +10,8 @@ from openpilot.system.hardware import TICI
 def openpilot_function_fixture():
   starting_env = dict(os.environ)
 
+  random.seed(0)
+
   # setup a clean environment for each test
   with OpenpilotPrefix():
     prefix = os.environ["OPENPILOT_PREFIX"]