Fix: IT subtests manifest and repository_files fail due to lack of fi…

…les (#5168)

test/integration_test.py

@@ -205,13 +205,7 @@ def setUp(self) -> None:
         super().setUp()
         # All random operations should be made using this seed so that test
         # results are deterministically reproducible
-        self.random_seed = (
-            # FIXME: Unpin the seed once underlying issue is fixed
-            #        https://github.com/DataBiosphere/azul/issues/5168
-            6634795309975096822
-            if config.deployment_stage == 'anvilprod' else
-            randint(0, sys.maxsize)
-        )
+        self.random_seed = randint(0, sys.maxsize)
         self.random = Random(self.random_seed)
         log.info('Using random seed %r', self.random_seed)
 
@@ -332,7 +326,8 @@ def _list_bundles(self,
         self.random.shuffle(sources)
         if public_1st:
             managed_access_sources = frozenset(
-                map(str, self.managed_access_sources_by_catalog[catalog])
+                str(source.spec)
+                for source in self.managed_access_sources_by_catalog[catalog]
             )
             index = first(
                 i