CDK tokens not being replaced with actual values in API Gateway AwsIntegration actionParameters

CDK tokens not being replaced with actual values in API Gateway AwsIntegration actionParameters

### Reproduction Steps

The below code, where props.bucket is of type `s3.IBucket` gets into CFN template, and deployment as `GetObject&Bucket=%24%7BToken%5BTOKEN.19%5D%7D&Key=index.html`

```
new apigw.AwsIntegration({
service: "s3",
action: "GetObject",
actionParameters: {
Bucket: props.bucket.bucketName,
Key: "index.html"
},
...
});
```

### Environment

- **CLI Version :** 1.31.0 (build 8f3ac79)
- **Framework Version:** 1.31.0 (build 8f3ac79)
- **OS :** MacOs
- **Language :** TypeScript

---

This is :bug: Bug Report

Start by tracing API Gateway AwsIntegration handling of actionParameters and reproduce the reported CloudFormation output with an s3.IBucket bucketName token. Confirm the fix by checking that the generated template and deployment no longer contain the unresolved ${Token[TOKEN.19]} value and instead preserve the actual bucket reference.

Written by the indexing model from the issue text.