elasticloadbalancingv2: support ALB attributes

[badmintoncryer]

Describe the feature

CDK supports configuring some ALB attributes.

• routing.http.preserve_host_header.enabled
• routing.http.x_amzn_tls_version_and_cipher_suite.enabled
• routing.http.xff_client_port.enabled
• routing.http.xff_header_processing.mode
• waf.fail_open.enabled

Use Case

We want to configure these attributes from CDK.

Proposed Solution

No response

Other Information

No response

Acknowledgements

• I may be able to implement this feature request
• This feature might incur a breaking change

CDK version used

2.132.0

Environment details (OS name and version, etc.)

irrelevant

[tim-finnigan]

Thank you for the feature request and creating the PR!