More stable workaround for MinGW fseek() workaround (#1759) #1345

Job	Run time
🔨 MSVC x64 glib	2m 17s
🔨 MSVC x86 glib	2m 14s
🔨 MSVC x64 cpp11	2m 16s
🔨 MSVC x86 cpp11	2m 11s
🔧 MSVC Additional (static_lib)	2m 4s
🔧 MSVC Additional (default)	2m 5s
🔧 MSVC Additional (debug_prof)	2m 5s
🔧 MSVC Additional (no_network)	2m 4s
🚧🟦 mingw64 glib	3m 54s
🚧🟦 mingw64 cpp11	3m 50s
🚧🟧 clang64 glib	3m 52s
🔧 MSVC Additional (minimal)	1m 57s
🚧⬛ mingw32 glib	3m 40s
🔧 MinGW fluidsynth-mingw-ffloat-store x86	1m 45s
🚧🟨 ucrt64 glib	3m 45s
🔧 MinGW fluidsynth-mingw x86	1m 35s
🔧 MSVC Additional (osal_cpp11)	2m 4s
🔧 MinGW fluidsynth-mingw1 x86	1m 31s
🔧 MinGW fluidsynth-mingw x64	1m 53s
🔧 MinGW fluidsynth-mingw-static x64	1m 41s
🚧🟧 clang64 cpp11	3m 40s
🚧⬛ mingw32 cpp11	3m 24s
🔧 MinGW fluidsynth-mingw2 x86	1m 42s
🚧🟨 ucrt64 cpp11	3m 38s
🧪 Acceptance Test	7s
🚀 Publish Release Artifacts	0s
📢 Announce Release	0s
	1h 1m 14s

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