Formatter: Parenthesized expression with comment on right hand side in assignment produces invalid syntax

[MichaReiser]

variable = (
    (something)  # a comment
    .fist_method("some string")
)

gets reformatted to

variable = (something)  # a comment
.fist_method("some string")

which is a syntax error, so there's a bug in ruff here.

Originally posted by @olofahlen in #8598