build

Revert "ci/mingw: use a mirror instead of ftp.gnu.org" #17372

Job	Run time
freebsd	5m 3s
openbsd	5m 50s
linux (gcc, g++, -Db_ndebug=true)	3m 19s
linux-ffmpeg-6-1	1m 23s
mingw (x86_64, wine64)	17m 20s
macos (macos-15-intel)	2m 17s
linux (clang, clang++, lld, -Db_lto=true -Db_lto_mode=thin)	2m 35s
win32 (aarch64-pc-windows-msvc, arm64, windows-11-arm)	17m 13s
macos (macos-14, arm, Xcode_15.0)	2m 13s
linux-fuzz	1m 42s
mingw (i686, wine32)	15m 17s
macos (macos-15, arm)	2m 34s
win32 (x86_64-pc-windows-msvc, x64, windows-2025-vs2026)	17m 10s
macos (macos-26, test, -target arm64-apple-macosx10.15, 10.15)	2m 20s
msys2 (clang64, windows-2025-vs2026, zero)	6m 3s
macos (macos-26, arm)	2m 20s
msys2 (clang64, windows-2025-vs2026, uninitialized)	6m 9s
msys2 (mingw64, windows-2025-vs2026)	6m 56s
msys2 (clang64, windows-2025-vs2026, pattern)	6m 24s
msys2 (ucrt64, windows-2025-vs2026)	7m 15s
msys2 (clang64, windows-2025-vs2026, true)	5m 53s
msys2 (clangarm64, windows-11-arm)	7m 13s
Publish git release	1s
	2h 24m 30s

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