chore(deps): update rust crate getrandom to 0.4 (#41)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

Cargo.toml

@@ -35,7 +35,7 @@ bilrost-derive = "0.1014.1"
 # Hashing
 sha2 = "0.10"
 base64 = "0.22.1"
-getrandom = "0.3"
+getrandom = "0.4"
 chrono = "0.4.44"
 
 # OpenPGP (sequoia)