tests/integration: continue even if ssl can't be cleaned up

swagger.yaml

@@ -7087,6 +7087,9 @@ definitions:
         type: boolean
       url:
         title: Url
+        description: Can be in the format of 'unix://<path>' when connecting to a
+          local docker daemon, or 'https://<hostname>:2376' when connecting to a remote
+          system.
         type: string
         minLength: 1
       tls_verification:

tests/integration/test_outpost_docker.py

@@ -83,7 +83,10 @@ class OutpostDockerTests(TestCase):
     def tearDown(self) -> None:
         super().tearDown()
         self.container.kill()
-        rmtree(self.ssl_folder)
+        try:
+            rmtree(self.ssl_folder)
+        except PermissionError:
+            pass
 
     def test_docker_controller(self):
         """test that deployment requires update"""