feat(prover): Add file based config for fri prover gateway

core/lib/zksync_core_leftovers/src/temp_config_store/mod.rs

@@ -32,7 +32,7 @@ pub fn decode_yaml_repr<T: ProtoRepr>(yaml: &str) -> anyhow::Result<T::Type> {
 // TODO (QIT-22): This structure is going to be removed when components will be responsible for their own configs.
 /// A temporary config store allowing to pass deserialized configs from `zksync_server` to `zksync_core`.
 /// All the configs are optional, since for some component combination it is not needed to pass all the configs.
-#[derive(Debug, PartialEq)]
+#[derive(Debug, PartialEq, Default)]
 pub struct TempConfigStore {
     pub postgres_config: Option<PostgresConfig>,
     pub health_check_config: Option<HealthCheckConfig>,