set-pl syntax is inconsistent between mautrix-python and mautrix-go

[maltee1]

mautrix-python uses set-pl <level> [mxid]
mautrix-go uses set-pl [user ID] <power level>

This is inconsistent. I filed the bug here, because the majority of bridges are python, so if this is changed, it should probably be changed in mautrix-go. Although I think the mautrix-go version is more intuitive.