Fixing httpx requests with http2

It seems that passing http2=True is not longer enough to send an http2
request with httpx, http1=False needs to be passed as well

This effectively invalidates I72d80a9981c465723b7fa9aad426118e243b7129
as not needed any more since httpx 0.28.0, see
https://github.com/encode/httpx/commit/2ea2286db4da3ba6d318e617ac03217

Related-Issue: PRODX-51194
Change-Id: Ia748f8728a494799d34d7130df727b2055d04090
1 file changed