Rename HTTP/3 SETTINGS_MAX_HEADER_LIST_SIZE to SETTINGS_MAX_FIELD_SECTION_SIZE. This matches https://datatracker.ietf.org/doc/html/draft-ietf-quic-http-30#section-7.2.4.1. PiperOrigin-RevId: 332947488 Change-Id: I2546a3b3c437567ab160805bae19fdcb53a0c935