chore(Worklets): add RuntimeId type alias (#9026)

## Summary

You don't need to remember the type now.

## Test plan

🚀

Author: tjzel

packages/react-native-worklets/Common/cpp/worklets/WorkletRuntime/RuntimeData.h

@@ -1,16 +1,19 @@
 #pragma once
 
 #include <jsi/jsi.h>
+
 #include <string>
 
 namespace worklets {
 namespace RuntimeData {
 
+using RuntimeId = uint64_t;
+
 /**
  * Unused, but kept for possible future use.
  */
-constexpr uint64_t rnRuntimeId{1};
-constexpr uint64_t uiRuntimeId{2};
+constexpr RuntimeId rnRuntimeId{1};
+constexpr RuntimeId uiRuntimeId{2};
 extern const std::string uiRuntimeName;
 
 #if REACT_NATIVE_MINOR_VERSION >= 81

packages/react-native-worklets/Common/cpp/worklets/WorkletRuntime/WorkletRuntime.h

@@ -120,7 +120,7 @@ class WorkletRuntime : public jsi::HostObject, public std::enable_shared_from_th
     return *runtime_;
   }
 
-  [[nodiscard]] uint64_t getRuntimeId() const noexcept {
+  [[nodiscard]] RuntimeData::RuntimeId getRuntimeId() const noexcept {
     return runtimeId_;
   }
 
@@ -129,7 +129,7 @@ class WorkletRuntime : public jsi::HostObject, public std::enable_shared_from_th
   }
 
   explicit WorkletRuntime(
-      uint64_t runtimeId,
+      RuntimeData::RuntimeId runtimeId,
       const std::shared_ptr<MessageQueueThread> &jsQueue,
       const std::string &name,
       const std::shared_ptr<AsyncQueue> &queue = nullptr,
@@ -173,7 +173,7 @@ class WorkletRuntime : public jsi::HostObject, public std::enable_shared_from_th
 #endif // NDEBUG
 
  private:
-  const uint64_t runtimeId_;
+  const RuntimeData::RuntimeId runtimeId_;
   const std::shared_ptr<std::recursive_mutex> runtimeMutex_;
   const std::shared_ptr<jsi::Runtime> runtime_;
   const std::string name_;