build

ci/mingw: add second download URL for iconv and freetype #17377

Job	Run time
linux (clang, clang++, lld, -Db_lto=true -Db_lto_mode=thin)	3m 15s
linux-ffmpeg-6-1	1m 18s
win32 (x86_64-pc-windows-msvc, x64, windows-2025-vs2026)	41m 32s
freebsd	4m 1s
macos (macos-14, arm, Xcode_15.0)	3m 14s
mingw (i686, wine32)	5m 3s
linux (gcc, g++, -Db_ndebug=true)	2m 14s
macos (macos-26, test, -target arm64-apple-macosx10.15, 10.15)	4m 56s
openbsd	8m 0s
linux-fuzz	1m 54s
msys2 (clang64, windows-2025-vs2026, zero)	4m 52s
win32 (aarch64-pc-windows-msvc, arm64, windows-11-arm)	34m 5s
macos (macos-15-intel)	7m 19s
mingw (x86_64, wine64)	10m 30s
msys2 (clang64, windows-2025-vs2026, uninitialized)	6m 0s
msys2 (mingw64, windows-2025-vs2026)	5m 38s
macos (macos-26, arm)	6m 9s
msys2 (clang64, windows-2025-vs2026, true)	6m 38s
macos (macos-15, arm)	4m 29s
msys2 (ucrt64, windows-2025-vs2026)	6m 21s
msys2 (clang64, windows-2025-vs2026, pattern)	5m 49s
msys2 (clangarm64, windows-11-arm)	7m 24s
Publish git release	0s
	3h 0m 41s

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