fix: added deprecated field to the related structs

[HasanAlrimawi]

This PR is compulsory as a first step to address issue deno repo issue
Changes
Added deprecated field to related structs in order to delegate deprecation info if found back to deno.

[dsherret]

Looks like the added test is failing?

[HasanAlrimawi]

I tried to update the visitors as mentioned to return Ok(v), but an error shows e.g. "mismatched types
expected enum std::option::Option found type bool" appears.
I also tried Ok(Some(v)) but then this error arises "expected type parameter T found type bool"

MORE IMPORTANTLY, I also tried to handle the deserialization at fn option level, without going through the visitor by returning Option<String> when Ok result is returned and returning a None value when Err result is received but the same happened.
I desperately changed Option<T> to Option<String> and updated anything connected to it, but still, it doesn't work even when I hardcode visitors to always return Ok(Some("some string".to_string())), the error is always "thread 'registry::test::deserializes_pkg_info_with_deprecated_as_array' panicked at src\registry.rs:910:66:
called Result::unwrap() on an Err value: Error("expected , or }".

Any insights??

[dsherret]

LGTM