[IMP] json: remove extra spaces

To make the output of json and orjson dumps
uniform and interchangeable, we need to remove
the extra spaces from the standard json string
as orjson does not provide the capability to
add the spaces.
Unit test assertions have been updated to not have
extra spaces with odoo/upgrade#6662

closes #155

Signed-off-by: Christophe Simonis (chs) <[email protected]>

Author: jjmaksoud

src/util/json.py

@@ -6,7 +6,7 @@
     import json
 
     def dumps(value, sort_keys=False):
-        return json.dumps(value, sort_keys=sort_keys)
+        return json.dumps(value, sort_keys=sort_keys, separators=(",", ":"))
 
     def loads(value):
         return json.loads(value)