chore(deps): bump scale family crates, primitive-types and impl-serde (#1832)

* chore(deps): bump scale-encode and scale-decode

* Update Cargo.toml

* Update Cargo.toml

* Update Cargo.toml

* update Cargo.lock

* bump scale-typegen

* use primitive_types::H256

* cargo fmt

* remove old darling hack

codegen/src/api/mod.rs

@@ -45,7 +45,8 @@ impl RuntimeGenerator {
     ///
     /// Supported versions: v14 and v15.
     pub fn new(mut metadata: Metadata) -> Self {
-        scale_typegen::utils::ensure_unique_type_paths(metadata.types_mut());
+        scale_typegen::utils::ensure_unique_type_paths(metadata.types_mut())
+            .expect("Duplicate type paths in metadata; this is bug please file an issue.");
         RuntimeGenerator { metadata }
     }