chore: bump noir_sort to v0.2.1 (#23)

Author: TomAFrench

Nargo.toml

@@ -6,4 +6,4 @@ compiler_version = ">=0.37.0"
 
 [dependencies]
 bignum = {tag = "v0.4.2", git = "https://github.com/noir-lang/noir-bignum"}
-sort = {tag = "v0.2.0", git = "https://github.com/noir-lang/noir_sort"}
+sort = {tag = "v0.2.1", git = "https://github.com/noir-lang/noir_sort"}