Update dolibarr.json

dolibarr.json

@@ -53,7 +53,7 @@
       "similar_solution_url": "https://www.projeqtor.org/en/",
       "category": "Application"
     }],
-    "licence_list": ["GNU 3.0"],
+    "licence_list": ["GPL v3.0"],
     "source_code_download": "https://sourceforge.net/projects/dolibarr/files/",
     "source_code_profile": "https://www.openhub.net/p/dolibarr/analyses/latest/languages_summary",
     "commercial_support_url": "https://www.opencollective.com/dolibarr",