Pending RELEASE-NOTES for the upcoming release

This is work in progress and will change before the release goes public on 2024-12-11.

Changes:

Bugfixes:

• build: omit certain deps from `libcurl.pc` unless found via `pkg-config`
• build: use `_fseeki64()` on Windows, drop detections
• cmake: drop cmake args list from `buildinfo.txt`
• cmake: restore cmake args list in `buildinfo.txt`
• cmake: sync GSS config code with other deps
• cmake: typo in comment
• cmake: work around `ios.toolchain.cmake` breaking feature-detections
• cmakelint: fix to check root `CMakeLists.txt`
• cmdline/ech.md: formatting cleanups
• configure: add FIXMEs for disabled pkg-config references
• configure: do not echo most inherited `LDFLAGS` to config files
• configure: replace `$#` shell syntax
• cookie: treat cookie name case sensitively
• curl-rustls.m4: keep existing `CPPFLAGS`/`LDFLAGS` when detected
• curl.h: mark two error codes as obsolete
• curl: --test-duphandle in debug builds runs "duphandled"
• curl: rename struct var to fix AIX build
• CURLOPT_PREREQFUNCTION.md: add result code on failure
• duphandle: also init netrc
• ECH: enable support for the AWS-LC backend
• krb5: fix socket/sockindex confusion, MSVC compiler warnings
• libssh: when using IPv6 numerical address, add brackets
• macos: disable gcc `availability` workaround as needed
• mbedtls: call psa_crypt_init() in global init
• mk-ca-bundle: remove CKA_NSS_SERVER_DISTRUST_AFTER conditions
• multi: add clarifying comment for wakeup_write()
• netrc: address several netrc parser flaws
• netrc: support large file, longer lines, longer tokens
• nghttp2: use custom memory functions
• os400: Fix IBMi builds
• os400: Fix IBMi EBCDIC conversion of arguments
• setopt: fix CURLOPT_HTTP_CONTENT_DECODING
• socket: handle binding to "host!<ip>"
• socketpair: fix enabling `USE_EVENTFD`
• strtok: use namespaced `strtok_r` macro instead of redefining it
• TODO: consider OCSP stapling by default
• vtls: fix compile warning when ALPN is not available

Contributors:

Andrew Ayer, Andrew Kirillov, andrewkirillov-ibm, Andy Fiddaman, Ben Greear, Bo Anderson, Dan Fandrich, Daniel Engberg, Daniel Stenberg, Dan Rosser, delogicsreal on github, Ethan Everett, Harmen Stoppels, Harry Sintonen, henrikjehgmti on github, Jesus Malo Poyatos, Kai Pastor, Logan Buth, Maarten Billemont, marcos-ng on github, Moritz, Nicolas F., Peter Marko, Ray Satiro, renovate[bot], Samuel Henrique, Stefan Eissing, Tal Regev, Thomas, tranzystorekk on github, Viktor Szakats, wxiaoguang on github