Release v2.26.0

Release: v2.26.0 [skip ci]

Minor

• Add: Expose stats() in Rust SDK (#768) (3713af9)
• Add: Rust compact binding (#771) (749d03b)

Patch

• Make: Modernize CI toolchains, pin cibuildwheel (017fad3)
• Fix: Reclaim slot_lookup_ tombstones under churn (#769) (c6d634c)
• Fix: Mix integer key hashes with SplitMix64 (#773) (9fc3500)
• Make: Build JavaScript Windows x64 prebuilds (#774) (7240652)
• Make: Bundle NumKong runtime with C# native artifacts (9c0ed29)