Weekly `cargo update` of primary dependencies

[obi1kenobi]

Automation to keep dependencies in the primary Cargo.lock current.

The following is the output from cargo update:

     Locking 9 packages to latest compatible versions
    Updating h2 v0.4.6 -> v0.4.7
    Updating hashbrown v0.15.1 -> v0.15.2
    Updating itoa v1.0.11 -> v1.0.13
    Updating portable-atomic v1.9.0 -> v1.10.0
    Updating proc-macro2 v1.0.89 -> v1.0.92
    Updating rustix v0.38.40 -> v0.38.41
    Updating schannel v0.1.26 -> v0.1.27
    Updating syn v2.0.87 -> v2.0.89
    Updating unicode-ident v1.0.13 -> v1.0.14
note: pass `--verbose` to see 146 unchanged dependencies behind latest