The Jira environment is built using only existing endpoints when built for a group of findings (#10428)

Co-authored-by: Camilo Cota <ccota@redhat.com>

Author: ccronca

dojo/jira_link/helper.py

@@ -618,7 +618,13 @@ def jira_environment(obj):
     if isinstance(obj, Finding):
         return "\n".join([str(endpoint) for endpoint in obj.endpoints.all()])
     elif isinstance(obj, Finding_Group):
-        return "\n".join([jira_environment(finding) for finding in obj.findings.all()])
+        envs = [
+            jira_environment(finding)
+            for finding in obj.findings.all()
+        ]
+
+        jira_environments = [env for env in envs if env]
+        return "\n".join(jira_environments)
     else:
         return ''