Change usr/bin/python to #!user/bin/env python in bridge/graphite.py (#928)

* Removed usr/bin/python from bridge/graphite.py
* Modified graphite.py, added #!usr/bin/env python.

Signed-off-by: Kishan Verma <[email protected]>
Co-authored-by: Kishan Verma <[email protected]>

Author: kishan-23

prometheus_client/bridge/graphite.py

@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/env python
 
 import logging
 import re