auto-enable clientParamParsing and clientSegmentCache w/ cacheComponents (#84250)
When you try `experimental.cacheComponents`, we should auto-enable the
supporting flags (`clientSegmentCache`, `clientParamParsing`), just like
we were doing with PPR to avoid the need to think about all the
different flags needed to get the best cache components testing
experience. Like before, these flags can be explicitly disabled for any
reason.