This commit adds a `header` variant and a `queryParam` variant to the
`MockRestRequestMatchers` API which take a single `Matcher` over the
list of values.
Contrary to the vararg variants, the whole list is evaluated and the
caller can choose the desired semantics using readily-available iterable
matchers like `everyItem`, `hasItems`, `hasSize`, `contains` or
`containsInAnyOrder`...
The fact that the previous variants don't strictly check the size of the
actual list == the number of provided matchers or expected values is
now documented in their respective javadocs.
See gh-29953
Closes gh-29964
7f2c93fa1f