chore: refactor test_server and move to rustls-tokio-stream (#21117)

Remove tokio-rustls as a direct dependency of Deno and refactor
test_server to reduce code duplication.

All tcp and tls listener paths go through the same streams now, with the
exception of the simpler Hyper http-only handlers (those can be done in
a later follow-up).

Minor bugs fixed:
 - gRPC server should only serve h2
 - WebSocket over http/2 had a port overlap
- Restored missing eye-catchers for some servers (still missing on Hyper
ones)

0 files changed, 0 insertions, 0 deletions