Add presubmit to disallow absl in /third_party/quic/ Motivation was that the quic_test_client change in cl/286244043 broke the Chromium merge. gfe-relnote: n/a, no behavior change PiperOrigin-RevId: 286489674 Change-Id: I65067f43f04a986028d9415e0e4a2b01d3fec0a4