[REQ][Perl] Refactor rquests in ApiClient.mustache

Is your feature request related to a problem? Please describe.

This refactor would be to address maintainability and performance, without changing any business logic or interface logic.

Swap LWP::UserAgent for HTTP::Tiny

HTTP::Tiny has been core module since 5.013009:

This is a very simple HTTP/1.1 client, designed for doing simple requests without the overhead of a large framework like LWP::UserAgent.

This would also eliminate the need for the following non-core modules:

• HTTP::Request::Common
• URI::Query
• URI::Escape

As well, HTTP::Tiny provides a request() method that could improve the conditional logic in call_api() around HTTP methods.

Support SSL

Unless I am overlooking it, I don't believe LWP has been installed with dependencies that support SSL, i.e. LWP::Protocol::https, Net::SSLeay, IO::Socket::SSL, etc.

Leverage JSON::MaybeXS/etc instead of JSON

Depending on the API, there could be some notable performance improvements by using Cpanel::JSON::XS or JSON::XS

Scalar::Util included but not used

Scalar::Util is not used, and honestly, I don't see a huge need for it besides preference. This could be dropped entirely

Describe the solution you'd like

Noted above.

Describe alternatives you've considered

N/A

Additional context

None.

Start with ApiClient.mustache and the call_api() entry point, then inspect the generated Perl client dependencies. Compare the current LWP::UserAgent, JSON, Scalar::Util, and related module usage with the proposed HTTP::Tiny and JSON alternatives. Done means preserving business and interface behavior while removing unused or unnecessary non-core dependencies, including SSL support where required.