[tests] Don't force the name of docker containers: it fails when CI runs several builds in parallel

beat/core/test/test_docker.py

@@ -131,7 +131,7 @@ class AsyncTest(unittest.TestCase):
       "import time; time.sleep(5)",
       "print('After')",
       ]),
-      ], name='memory_limit', virtual_memory_in_megabytes=4) as p:
+      ], virtual_memory_in_megabytes=4) as p:
 
       time.sleep(2)
       stats = p.statistics()
@@ -153,7 +153,7 @@ class AsyncTest(unittest.TestCase):
       "import time; time.sleep(5)",
       "print('After')",
       ]),
-      ], name='memory_limit2', virtual_memory_in_megabytes=100) as p:
+      ], virtual_memory_in_megabytes=100) as p:
 
       time.sleep(2)
       stats = p.statistics()