(api-gateway): Ability to set Per-key cache invalidation attributes

### Description

It would be great to be able to set Per-key cache invalidation (enabled/disabled) and sub-attributes - Require authorization (true/false) and Handle unauthorized requests (1 from 3 options) globally - per stage and per method in API.

### Use Case

I'm regularly deploying 20+ APIs to 3 stages and have to manually set Per-key cache invalidation behavior manually for each method separately, thats annoying.

### Proposed Solution

Would be great if added these options to interface StageOptions and MethodDeploymentOptions

### Other information

_No response_

### Acknowledge

- [ ] I may be able to implement this feature request
- [ ] This feature might incur a breaking change

Start by locating the StageOptions and MethodDeploymentOptions interfaces and reviewing how API Gateway cache invalidation settings are currently represented. The work is complete when per-key cache invalidation, authorization requirements, and unauthorized-request handling can be configured globally, per stage, and per method.

Written by the indexing model from the issue text.