Keep OpenVAS port ranges compact

[BharatDeva]

Summary

This fixes port list generation so OpenVAS keeps explicit ranges compact instead of expanding them into every individual port.

For example, a full TCP range now serializes as T:1-65535, instead of a very large comma-separated list. This avoids producing oversized scan arguments for broad port ranges.

Fixes #2223

Testing

$ cargo test -p greenbone-scanner-framework port
running 2 tests
test models::port::tests::test_port_conversion_to_string ... ok
test models::port::tests::test_port_conversion_keeps_large_ranges_compact ... ok

test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 59 filtered out

$ cargo fmt --check -p greenbone-scanner-framework

$ git diff --check HEAD~1..HEAD

[Tehforsch]

Hi @BharatDeva thank you for your contribution(s).

Before we merge this, could you please add yourself to the RELICENSE agreement? See https://github.com/greenbone/openvas-scanner/blob/main/README.md#contributing

You can do it in this PR