Emulate specifying `PUT` response hop limit

**Describe the feature**
When [configuring IMDS](https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/configuring-instance-metadata-options.html), users are able to specify a `PUT` response hop limit for instance metadata requests. AEMM should be able to do the same.

**Is the feature request related to a problem?**
N/A

**Describe alternatives you've considered**
N/A, want to align AEMM as close to IMDS as possible

No source files or tests are named in the issue. Start by locating AEMM's instance-metadata configuration and request-handling entry points, then compare them with the documented IMDS PUT response hop-limit behavior. Done means the configured hop limit is represented and honored, with coverage for the new behavior.

Written by the indexing model from the issue text.