JSII Go integration does not render structs with captials in CFN

### Describe the bug

There are some fields in WAF that need to be rendered with a capital first letter instead of a normal one. For example:

`awswafv2: SingleHeaderProperty` fails deployment with:

Expected Behavior

synthesize a template with capitalized property
`"FieldToMatch": { "SingleHeader": { "Name": "issued" }`
Current Behavior

This is the generated template portion
`"FieldToMatch": { "SingleHeader": { "name": "issued" } },`

### Expected Behavior

Expected behavior is resolution of a capital "Name" instead of a lowercase "name"

### Current Behavior

A lowercase "name" is rendered

### Reproduction Steps

see https://github.com/aws/aws-cdk/issues/28074

### Possible Solution

The actual Go code is here:

https://github.com/aws/aws-cdk-go/blob/main/awscdk/awswafv2/CfnLoggingConfiguration_SingleHeaderProperty.go#L29

It looks like the code that renders it is here:

https://github.com/codypenta/jsii/blob/c1fca2adca28be66caadfa5fa33523e30b8c5699/packages/jsii-pacmak/lib/targets/go/types/type-member.ts#L120

### Additional Information/Context

Happy to submit a PR if y'all can point me in the right direction in how you would like to tackle this.

### SDK version used

2.110.0

### Environment details (OS name and version, etc.)

windows 10

Start by reading packages/jsii-pacmak/lib/targets/go/types/type-member.ts around line 120 and compare its output with the generated aws-cdk-go SingleHeaderProperty file linked in the issue. Reproduce the WAF SingleHeaderProperty case, then verify that the synthesized template uses "Name" rather than "name".

Written by the indexing model from the issue text.