@beta version doesn't work

I had to use @main for it to work.

Error: Squads-Protocol/squads-v4-program-upgrade/beta/action.yaml: (Line: 9, Col: 60, Idx: 241) - (Line: 9, Col: 112, Idx: 293): While parsing a block mapping, did not find expected key.
Error: System.ArgumentException: Unexpected type '' encountered while reading 'action manifest root'. The type 'MappingToken' was expected.
