[GraphQL] Add health endpoint to version routes as well (#18580)

## Description 

Add health endpoint to version routes as well.

## Test plan 

How did you test the new or updated feature?

---

## Release notes

Check each box that your changes affect. If none of the boxes relate to
your changes, release notes aren't required.

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that describes the impact of your changes that a user might notice and
any actions they must take to implement updates.

- [ ] Protocol: 
- [ ] Nodes (Validators and Full nodes): 
- [ ] Indexer: 
- [ ] JSON-RPC: 
- [x] GraphQL: Added the health endpoint to version routes as well.
- [ ] CLI: 
- [ ] Rust SDK:

crates/sui-graphql-rpc/src/server/builder.rs

@@ -257,6 +257,8 @@ impl ServerBuilder {
                 .route("/graphql", post(graphql_handler))
                 .route("/graphql/:version", post(graphql_handler))
                 .route("/health", get(health_check))
+                .route("/graphql/health", get(health_check))
+                .route("/graphql/:version/health", get(health_check))
                 .with_state(self.state.clone())
                 .route_layer(CallbackLayer::new(MetricsMakeCallbackHandler {
                     metrics: self.state.metrics.clone(),