validate_yaml: Fix formatting by black

Signed-off-by: Denys Fedoryshchenko <[email protected]>

Author: nuclearcat

tests/validate_yaml.py

@@ -81,7 +81,9 @@ def validate_scheduler_jobs(data):
         # scheduler entry must have defined in event: channel, (state or result), kind
         event = entry.get("event")
         if not event:
-            raise yaml.YAMLError(f"Event not found for scheduler entry: {jobname}: {entry}")
+            raise yaml.YAMLError(
+                f"Event not found for scheduler entry: {jobname}: {entry}"
+            )
         if not event.get("channel"):
             raise yaml.YAMLError(f"Channel not found for event: {jobname}: {entry}")
         if not event.get("state"):
@@ -158,7 +160,6 @@ def validate_unused_trees(data):
             print(f"Warning: Tree {tree} is not used in build_configs")
 
 
-
 def validate_duplicate_jobs(data, filename):
     """
     Check for duplicate job keys in a single YAML file
@@ -274,5 +275,6 @@ def main():
 
     validate_yaml(merged_data)
 
+
 if __name__ == "__main__":
     main()