Update Rust dependencies

This MR updates the dependencies of the Rust component used to parse HTML.

It fixes the following compile error when building with a nightly rustc (rustc 1.74.0-nightly (58eefc33a 2023-08-24)):

error[E0422]: cannot find struct, variant or union type `LineColumn` in crate `proc_macro`
   --> /home/user/.cargo/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.56/src/wrapper.rs:475:33
    |
475 |                 let proc_macro::LineColumn { line, column } = s.start();
    |                                 ^^^^^^^^^^ not found in `proc_macro`
    |
help: consider importing this struct through its public re-export
    |
1   + use crate::LineColumn;
    |
help: if you import `LineColumn`, refer to it directly
    |
475 -                 let proc_macro::LineColumn { line, column } = s.start();
475 +                 let LineColumn { line, column } = s.start();
    |

error[E0422]: cannot find struct, variant or union type `LineColumn` in crate `proc_macro`
   --> /home/user/.cargo/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.56/src/wrapper.rs:489:33
    |
489 |                 let proc_macro::LineColumn { line, column } = s.end();
    |                                 ^^^^^^^^^^ not found in `proc_macro`
    |
help: consider importing this struct through its public re-export
    |
1   + use crate::LineColumn;
    |
help: if you import `LineColumn`, refer to it directly
    |
489 -                 let proc_macro::LineColumn { line, column } = s.end();
489 +                 let LineColumn { line, column } = s.end();
    |

error[E0635]: unknown feature `proc_macro_span_shrink`
  --> /home/user/.cargo/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.56/src/lib.rs:92:30
   |
92 |     feature(proc_macro_span, proc_macro_span_shrink)
   |                              ^^^^^^^^^^^^^^^^^^^^^^

Some errors have detailed explanations: E0422, E0635.
For more information about an error, try `rustc --explain E0422`.
error: could not compile `proc-macro2` (lib) due to 3 previous errors
warning: build failed, waiting for other jobs to finish...