feat(gcp): add Shodan check for GCP External Addresses (#3486)

Co-authored-by: Pepe Fagoaga <pepe@prowler.com>

tests/providers/common/common_outputs_test.py

@@ -130,6 +130,7 @@ class Test_Common_Output_Options:
         arguments.verbose = True
         arguments.output_filename = "output_test_filename"
         arguments.only_logs = False
+        arguments.shodan = "test-api-key"
         arguments.unix_timestamp = False
 
         audit_info = self.set_mocked_gcp_audit_info()