Loosen requirements on test_multiple_backends_http_h1 (#767)
Loosen requirements on test_multiple_backends_http_h1 (#767)

Signed-off-by: tomjzzhang <249948f647da053b98b1511a795ac5d15e0f52b5@users.noreply.github.com>
envoyproxy/nighthawk,envoyproxy/nighthawk,envoyproxy/nighthawk,envoyproxy/nighthawk