Merge pull request #5604 from freedomofpress/fix_5603_functional_meta…

…tdata_for_focal

Server OS can be 16.04 or 20.04

securedrop/tests/functional/source_navigation_steps.py

@@ -29,7 +29,7 @@ def _source_visits_source_homepage(self):
     def _source_checks_instance_metadata(self):
         self.driver.get(self.source_location + "/metadata")
         j = json.loads(self.driver.find_element_by_tag_name("body").text)
-        assert j["server_os"] == "16.04"
+        assert j["server_os"] in ["16.04", "20.04"]
         assert j["sd_version"] == self.source_app.jinja_env.globals["version"]
         assert j["gpg_fpr"] != ""