fixes: mockito#1593

Remove broken `VarargMatcher` internal interface.

BREAKING CHANGE: This changes the default behaviour of the `any()` matcher when passed to a varargs parameter.  Previously, the `any()` matcher would match each element in the varargs parameter, matching any number of elements 0...n. From Mockito v5 onwards `any()`, when passed to a varargs parameter, will match invocations where a single value is passed to the varargs parameter. To match any number of values passed to the varargs parameter, pass the type of the varargs parameter to `any()`. For example, given a `String...` varargs parameter, use `any(String[].class)`.

...tests duplicate others in `VarargsTest`

BREAKING CHANGE: The behaviour of argument captors when passed to a varargs parameter has changed. Prior to Mockito v5, passing an argument captor to a varargs parameter would capture any number of values passed to the varargs parameter. From Mockito v5, the same call will match only a single value passed to the varargs parameter.  To capture any number of values, change to the type of the argument captor to match the array type of the varargs parameter. For example, given a `String...` varargs parameter, change the argument captor from type `String` to type `String[]`.

... fix tests!

... fix tests!

BREAKING CHANGE: The behaviour of all methods in `MockitoHamcrest` when passed to a varargs parameter has changed. Prior to Mockito v5, these matchers would match each element in the varargs parameter, matching any number of elements 0...n. From Mockito v5 onwards these matchers, when passed to a varargs parameter, will match invocations where a single value is passed to the varargs parameter. To match any number of values passed to the varargs parameter, pass use suitable Matcher that matches the vararg's array type. For example, given a `String...` varargs parameter, use a Matcher that handles `String[].class`.

... required to support matchers that match a vararg parameter, rather than values in a varargs parameter.

...demonstrating how exactly two, or any number, of varargs values  can be matched with argument captors.

...for methods released in 4.11.0