(aws-cdk): (Disallow CDK Bootstrap to default AdministratorAccess for cfn-exec-role)

### Describe the feature

By default, CDK Bootstrap uses AdministratorAccess for cfn-exec-role when we run the `cdk bootstrap` command. This allows CDK to have higher privileges that the user is authorized to perform and poses a security concern. Feature request is to make '--cloudformation-execution-policies' parameter mandatory.

### Use Case

In my account, the account administrator disabled using AdministratorAccess. The account also has Config rules to remove AdministratorAccess access if found. We also have a security policy that removes the CDK S3 bucket first day of a month. Since we require re-bootstrapping the account each month, it would be ideal to make cdk bootstrap '--cloudformation-execution-policies' parameter mandatory. That way, it will force us to pass the right cfn-exec-role than to have CDK default to AdministratorAccess role.

### Proposed Solution

Make '--cloudformation-execution-policies' parameter mandatory

### Other Information

_No response_

### Acknowledgements

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

### CDK version used

2.94.0 (build 987c329)

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

AWS Workspace (Microsoft Windows Server 2016 DataCenter 10.0.14393 Build 14393)

Start at the cdk bootstrap command and trace how --cloudformation-execution-policies is currently handled. Confirm the expected behavior for accounts that omit the option, identify the existing bootstrap command tests, and consider the breaking-change implications; done means the requested policy must be supplied and the behavior is covered by tests.

Written by the indexing model from the issue text.