v0.6.0 — Improved interdependency management

• Fix support for updating versions of dependencies declared in non-inline tables
• Cargo.toml template:
  • Set rustc's renamed_and_removed_lints lint back to "warn" level
  • Rename temporary_cstring_as_ptr lint to dangling_pointers_from_temporaries
  • Update lints for Rust 1.84
  • Remove lints relating to pointers & FFI
• test.yml template:
  • Improve clippy invocation
  • Add --cfg docsrs to RUSTDOCFLAGS
  • Assume project is always a workspace with features
• mkgithub: Handle creating repositories without descriptions
• release:
  • Bugfix: Don't panic when run on a project whose README lacks header links
  • Bugfix: When bumping local workspace inter-dependencies:
    • Don't add version keys to specifiers that lack them
    • Don't treat ^x.y.z-dev as accepting x.y.z
    • Don't update Cargo.lock until after dependents are updated
  • Unstash files in {dir}.stash/ if cargo publish fails