feat(ecs-patterns): add containerCpu and containerMemoryLimitMiB …

…property to `ApplicationLoadBalancedFargateService` (#30920)

### Issue #20638 

Closes #20638 

### Reason for this change

ApplicationLoadBalancedFargateService did not allow you to specify the CPU and memory of the container.

### Description of changes

- Add `containerCpu` property to `ApplicationLoadBalancedFargateServiceProps`
- Add `containerMemoryLimitMiB` property to `ApplicationLoadBalancedFargateServiceProps`

### Description of how you validated changes

Added both unit and integration tests.

### Checklist
- [x] My code adheres to the [CONTRIBUTING GUIDE](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md) and [DESIGN GUIDELINES](https://github.com/aws/aws-cdk/blob/main/docs/DESIGN_GUIDELINES.md)

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*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*