Add tests for services that have AwsQueryCompatible trait. Add x-amzn-query-mode heade

[peterrsongg]

Description

Same PR as #3861

Motivation and Context

Same as #3861

Testing

DRY_RUN-2cc7d6bd-a6b6-4f73-8ba7-c75eb792e328

Screenshots (if appropriate)

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• My code follows the code style of this project
• My change requires a change to the documentation
• I have updated the documentation accordingly
• I have read the README document
• I have added tests to cover my changes
• All new and existing tests passed

License

• I confirm that this pull request can be released under the Apache 2 license