Struct signals not checked for signal-name-style

[matlupi]

Describe the bug

Case formatting of structure signals is not checked.

Test case (preferably reduced)

module test();
typedef struct packed {
  logic OutSelectL;
  logic OutSelectC;
} channel_cfg_t;
endmodule

$ verible-verilog-lint --version
v0.0-3481-gc517d611
Commit	2024-01-05
Built	2024-01-05T17:03:26Z

Actual vs. expected behavior

Actual: Linting passes

$ verible-verilog-lint test.sv
$

Expected: the file should not pass according to signal-name-style which defaults to snake_case

False-negative