build(deps): update rand_xorshift requirement from 0.2.0 to 0.3.0

Updates the requirements on [rand_xorshift](https://github.com/rust-random/rngs) to permit the latest version.
- [Release notes](https://github.com/rust-random/rngs/releases)
- [Commits](https://github.com/rust-random/rngs/commits/rand_xorshift-0.3.0)

Signed-off-by: dependabot[bot] <support@github.com>

fixed-hash/Cargo.toml

@@ -22,7 +22,7 @@ static_assertions = "1.0.0"
 arbitrary = { version = "0.4", optional = true }
 
 [dev-dependencies]
-rand_xorshift = "0.2.0"
+rand_xorshift = "0.3.0"
 criterion = "0.3.0"
 rand = { version = "0.8.0", default-features = false, features = ["std_rng"] }