Fix tests

Signed-off-by: Tushar Goel <tushar.goel.dav@gmail.com>

Author: TG1999

vulnerabilities/improvers/__init__.py

@@ -48,7 +48,6 @@
         valid_versions.ApacheKafkaImprover,
         valid_versions.IstioImprover,
         valid_versions.DebianOvalImprover,
-        valid_versions.UbuntuOvalImprover,
         valid_versions.OSSFuzzImprover,
         valid_versions.RubyImprover,
         valid_versions.GithubOSVImprover,

vulnerabilities/pipelines/remove_duplicate_advisories.py

@@ -18,6 +18,7 @@ class RemoveDuplicateAdvisoriesPipeline(VulnerableCodePipeline):
     """Pipeline to compute new advisory content id and remove duplicate advisories based on their content."""
 
     pipeline_id = "remove_duplicate_advisories"
+    run_once = True
 
     @classmethod
     def steps(cls):