Add 2 new tests - COMP-RANGE-POST COMP-UPGRADE-HTTP10

[MDA2AV]

Added 2 tests:

1. COMP-RANGE-POST — Sends POST with Range: bytes=0-10. Server MUST ignore Range for non-GET methods (RFC 9110 §14.2). Pass on 2xx, Fail on
3. COMP-UPGRADE-HTTP10 — Sends HTTP/1.0 GET with Upgrade: websocket. Server MUST ignore Upgrade in HTTP/1.0 (RFC 9110 §7.8). Fail on 101,
   Pass on anything else.

Not added (3 tests):

• HTTP-date format acceptance — Can't reliably test. Our servers serve dynamic endpoints without Last-Modified support, so there's no way to
  verify the server actually parsed the old date format vs just ignored the conditional header. Both paths produce the same 200 response.
• 205 must have no content — Can't trigger. No standard request reliably produces a 205 response from our test servers.
• Precondition evaluation order — Requires known ETags and Last-Modified dates on the server. Our test servers don't track resource state,
  so we can't verify which precondition header was evaluated first.