Remove json from HTTP requests for ScaleGov (#47)

Author: edwardpark97

scaleapi/_version.py

@@ -1,2 +1,2 @@
-__version__ = "2.5.0"
+__version__ = "2.6.0"
 __package_name__ = "scaleapi"

scaleapi/api.py

@@ -61,7 +61,7 @@ def _http_request(
 
         try:
             params = params or {}
-            body = body or {}
+            body = body or None
 
             res = https.request(
                 method=method,