Update validate_mod_json.py

Author: GeorgeK1ng

.github/validate_mod_json.py

@@ -36,7 +36,7 @@
                 continue
 
             try:
-                 filecontent = response.read().decode("utf-8")
+                filecontent = response.read().decode("utf-8")
                 jstyleson.load(StringIO(filecontent))
                 print(f"✅ JSON valid")
             except Exception as err: