fix by black

Author: RazvanLiviuVarzaru

docker-compose/generate-config.py

@@ -150,10 +150,14 @@ def main(args):
         key: VOLUMES[:]
         for key in [element.replace("/", "_") for element in MASTER_DIRECTORIES]
     }
-    for master in ["master-nonlatent", "master-docker-nonstandard", "master-docker-nonstandard-2"]:
-      master_volumes[master].append(
-          "/srv/buildbot/packages:/srv/buildbot/packages"
-      )  # Using FileUpload step
+    for master in [
+        "master-nonlatent",
+        "master-docker-nonstandard",
+        "master-docker-nonstandard-2",
+    ]:
+        master_volumes[master].append(
+            "/srv/buildbot/packages:/srv/buildbot/packages"
+        )  # Using FileUpload step
 
     # Capture the current environment variables' keys
     current_env_keys = set(os.environ.keys())