fix: fix JSONDEcodeError exception

Author: etiennevincent

grafana_client/client.py

@@ -1,7 +1,7 @@
 import niquests
 import niquests.auth
 from niquests import HTTPError, Timeout
-from requests.exceptions import JSONDecodeError
+from niquests.exceptions import JSONDecodeError
 
 DEFAULT_TIMEOUT: float = 5.0
 DEFAULT_SESSION_POOL_SIZE: int = 10