squad-get-testlog: ensure using python from the environment

As python supports virtual environments, using /usr/bin/env python will
make sure that your scripts runs inside the virtual environment, if you
are inside one. Whereas, /usr/bin/python will run outside the virtual
environment.

Signed-off-by: Anders Roxell <[email protected]>

squad-get-testlog

@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 import requests
 import json
 import sys