Support string literal patterns

This currently doesn't work, because I think we are looking for idents/paths only. We should add support for literals.

#[remain::check]
fn former_lint_group(lint_id: &str) -> Option<LintGroup> {
    #[sorted]
    match lint_id {
        "cognitive_complexity" => Some(LintGroup::Complexity), // https://github.com/rust-lang/rust-clippy/pull/5428
        "implicit_hasher" => Some(LintGroup::Style), // https://github.com/rust-lang/rust-clippy/pull/5411
        "inefficient_to_string" => Some(LintGroup::Perf), // https://github.com/rust-lang/rust-clippy/pull/5412
        "integer_division" => Some(LintGroup::Pedantic), // https://github.com/rust-lang/rust-clippy/pull/4210
        "large_digit_groups" => Some(LintGroup::Style), // https://github.com/rust-lang/rust-clippy/pull/3479
        "let_unit_value" => Some(LintGroup::Style), // https://github.com/rust-lang/rust-clippy/pull/5409
        "manual_map" => Some(LintGroup::Style), // https://github.com/rust-lang/rust-clippy/pull/6796
        "match_bool" => Some(LintGroup::Style), // https://github.com/rust-lang/rust-clippy/pull/5408
        "needless_pass_by_value" => Some(LintGroup::Style), // https://github.com/rust-lang/rust-clippy/pull/3439
        "new_ret_no_self" => Some(LintGroup::Style), // https://github.com/rust-lang/rust-clippy/pull/5420
        "nonstandard_macro_braces" => Some(LintGroup::Style), // https://github.com/rust-lang/rust-clippy/pull/7424
        "option_if_let_else" => Some(LintGroup::Pedantic), // https://github.com/rust-lang/rust-clippy/pull/7568
        "option_option" => Some(LintGroup::Complexity), // https://github.com/rust-lang/rust-clippy/pull/5401
        "rc_buffer" => Some(LintGroup::Perf), // https://github.com/rust-lang/rust-clippy/pull/6128
        "string_lit_as_bytes" => Some(LintGroup::Style), // https://github.com/rust-lang/rust-clippy/pull/6117
        "trivial_regex" => Some(LintGroup::Style), // https://github.com/rust-lang/rust-clippy/pull/6696
        "trivially_copy_pass_by_ref" => Some(LintGroup::Perf), // https://github.com/rust-lang/rust-clippy/pull/5410
        "unnested_or_patterns" => Some(LintGroup::Complexity), // https://github.com/rust-lang/rust-clippy/pull/5705
        "unreadable_literal" => Some(LintGroup::Style), // https://github.com/rust-lang/rust-clippy/pull/5419
        "unsafe_vector_initialization" => Some(LintGroup::Correctness), // https://github.com/rust-lang/rust-clippy/pull/3478
        "useless_let_if_seq" => Some(LintGroup::Style), // https://github.com/rust-lang/rust-clippy/pull/5599
        _ => None,
    }
}

error: unsupported by #[remain::sorted]
   --> src/main.rs:246:9
    |
246 |         "cognitive_complexity" => Some(LintGroup::Complexity), // https://github.com/rust-lang/rust-clippy/pull/5428
    |         ^^^^^^^^^^^^^^^^^^^^^^