chore: update a few dependencies (thiserror, subtle, base64*)

Unfortunately we can't yet update the sha2 or hkdf until
zkcrypto/bls12_381#139 is resolved.

Cargo.toml

@@ -16,8 +16,8 @@ readme = "README.md"
 [dependencies]
 rayon = { version = "1", optional = true }
 rand_core = "0.6.0"
-thiserror = "1.0"
-subtle = "2.2.1"
+thiserror = "2.0"
+subtle = "2.6.1"
 
 ff = "0.13"
 group = "0.13"
@@ -39,10 +39,10 @@ blst-portable = [ "blst_lib", "blst_lib/portable", "blstrs/portable" ]
 
 [dev-dependencies]
 rand = "0.8"
-base64 = "0.13.0"
+base64 = "0.22.1"
 serde = { version = "1.0.106", features = ["derive"] }
 serde_json = "1.0.52"
-base64-serde = "0.6.1"
+base64-serde = "0.8.0"
 rand_chacha = "0.3.1"
 
 [[example]]