fix(sdk): container port token is resolved as a number (#6692)

## Checklist

- [ ] Title matches [Winglang's style guide](https://www.winglang.io/contributing/start-here/pull_requests#how-are-pull-request-titles-formatted)
- [ ] Description explains motivation and solution
- [ ] Tests added (always)
- [ ] Docs updated (only required for features)
- [ ] Added `pr/e2e-full` label if this feature requires end-to-end testing

*By submitting this pull request, I confirm that my contribution is made under the terms of the [Wing Cloud Contribution License](https://github.com/winglang/wing/blob/main/CONTRIBUTION_LICENSE.md)*.

examples/tests/sdk_tests/container/network.test.w

@@ -18,8 +18,11 @@ if util.env("WING_TARGET") == "sim" {
     args: ["-text=bang"],
     network: "host",
   ) as "network-host";
+
+  let localUrl = "http://localhost:{networkHost.hostPort!}";
 
   test "container with host network" {
     expect.equal(networkHost.hostPort, "5678");
+    expect.equal(localUrl, "http://localhost:5678");
   }
 }

libs/wingsdk/src/target-sim/container.inflight.ts

@@ -142,7 +142,7 @@ export class Container implements IContainerClient, ISimulatorResourceInstance {
       LogLevel.VERBOSE
     );
 
-    let hostPort: number | undefined;
+    let hostPort: string | undefined;
     await waitUntil(async () => {
       if (!this.child?.running) {
         throw new Error(`Container ${this.imageTag} stopped unexpectedly`);
@@ -154,7 +154,7 @@ export class Container implements IContainerClient, ISimulatorResourceInstance {
       if (this.props.containerPort) {
         // when using the host network, the host port is the same as the container port
         if (this.props.network === "host") {
-          hostPort = this.props.containerPort;
+          hostPort = this.props.containerPort.toString();
           return (
             container?.[0]?.Config?.ExposedPorts?.[`${hostPort}/tcp`] !==
             undefined