build(deps): bump bitflags from 2.6 to 2.8

- Update bitflags dependency from version 2.6 to 2.8 in Cargo.toml

Author: ShenMian

Cargo.toml

@@ -20,7 +20,7 @@ harness = false
 bench = false
 
 [dependencies]
-bitflags = "2.6"
+bitflags = "2.8"
 itertools = "0.14"
 nalgebra = "0.33"
 thiserror = "2.0"