Make wasm runtime cache size configurable (#10177)

* Make wasm runtime cache size configurable

* apply review comments

* remove VersionedRuntimeValue

* fix compilation

* VersionedRuntime: replace clone by Arc

* fmt

* fix warnings

* fix tests compilation

* fmt

substrate/test-utils/test-runner/src/client.rs

@@ -111,6 +111,7 @@ where
 		config.wasm_method,
 		config.default_heap_pages,
 		config.max_runtime_instances,
+		config.runtime_cache_size,
 	);
 
 	let (client, backend, keystore, mut task_manager) =

substrate/test-utils/test-runner/src/utils.rs

@@ -113,5 +113,6 @@ pub fn default_config(tokio_handle: Handle, mut chain_spec: Box<dyn ChainSpec>)
 		keep_blocks: KeepBlocks::All,
 		state_pruning: Default::default(),
 		transaction_storage: TransactionStorageMode::BlockBody,
+		runtime_cache_size: 2,
 	}
 }