Pin the behaviour added in the preceding commit — `_get_proxy_for_base_url()`
must return None for hosts covered by NO_PROXY and the HTTPS_PROXY otherwise,
and the full `_create_openai_client()` path must NOT mount HTTPProxy for a
NO_PROXY host.
Refs: #14966
Adds a regression guard for the #11277 → proxy-bypass regression fixed in
42b394c3. With HTTPS_PROXY / HTTP_PROXY / ALL_PROXY set, the custom httpx
transport used for TCP keepalives must still route requests through an
HTTPProxy pool; without proxy env, no HTTPProxy mount should exist.
Also maps zrc <zhurongcheng@rcrai.com> → heykb in scripts/release.py
AUTHOR_MAP so the salvage PR passes the author-attribution CI check.