fix(init): freshly generated go project doesn't build (#22310)

The import for `jsii` is commented out, but `jsii.Close()` is called in the code, so the project won't build. Unommented the `jsii` import.

To reproduce or test:

```
mkdir hello-cdk
cd hello-cdk
cdk init --language go
go get
go build
```

The `go build` step fails with `.\hello-cdk.go:32:8: undefined: jsii` before the fix, succeeds afterward.


----

### All Submissions:

* [x] Have you followed the guidelines in our [Contributing guide?](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md)

packages/aws-cdk/lib/init-templates/app/go/%name%.template.go

@@ -4,7 +4,7 @@ import (
 	"github.com/aws/aws-cdk-go/awscdk/v2"
 	// "github.com/aws/aws-cdk-go/awscdk/v2/awssqs"
 	"github.com/aws/constructs-go/constructs/v10"
-	// "github.com/aws/jsii-runtime-go"
+	"github.com/aws/jsii-runtime-go"
 )
 
 type %name.PascalCased%StackProps struct {