chore: release v0.16.2

[github-actions]

🤖 New release

• hashbrown: 0.16.1 -> 0.16.2 (✓ API compatible changes)

Changelog

0.16.2 - 2025-12-29

Other

• Run cargo doc on CI
• Replace manual rustdoc links with better ones
• MSRV 1.85, edition 2024
• Run taplo in CI
• :invert isn't used in all cases; just inline it to avoid allowing a lint
• Remove expectations that no longer apply
• Replace allow with expect where possible
• Deny unreachable_pub
• Manually tweak unsafe block additions
• Enable unsafe_op_in_unsafe_fn for 2024 compatibility, clippy fix
• Apparently CI hard-coded 1.80 as a fixed point, now it's just 1.84
• Clippy fix
• Move lints to Cargo.toml
• taplo fmt
• Update MSRV
• Merge pull request Fix unreachable_pub lint #675 from clarfonthey/unreachable-pub
• Merge pull request Add hash_map::{OccupiedEntry::into_entry, VacantEntryRef::insert_entry_with_key}, make EntryRef use ToOwned again #670 from clarfonthey/entry-into-entry
• Improve entry API
• Add hash_table::OccupiedEntry::replace_entry_with to mirror HashMap API
• Override clone_from for HashTable
• Rename raw table buckets to num_buckets

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