Test if ftell issue for mingw x64 #1338

Job	Run time
🔧 MinGW fluidsynth-mingw x86	1m 38s
🔧 MinGW fluidsynth-mingw1 x86	1m 45s
🔨 MSVC x86 glib	2m 22s
🔧 MSVC Additional (minimal)	2m 4s
🔧 MinGW fluidsynth-mingw x64	1m 58s
🔧 MSVC Additional (no_network)	2m 3s
🔨 MSVC x64 cpp11	2m 16s
🔧 MSVC Additional (debug_prof)	2m 25s
🔧 MinGW fluidsynth-mingw-ffloat-store x86	3m 8s
🔧 MSVC Additional (osal_cpp11)	2m 1s
🔨 MSVC x64 glib	3m 18s
🔧 MinGW fluidsynth-mingw-static x64	1m 43s
🔨 MSVC x86 cpp11	2m 17s
🚧⬛ mingw32 cpp11	3m 22s
🚧🟦 mingw64 glib	4m 16s
🚧🟨 ucrt64 glib	3m 32s
🚧⬛ mingw32 glib	3m 48s
🔧 MSVC Additional (default)	2m 5s
🚧🟧 clang64 cpp11	3m 57s
🚧🟨 ucrt64 cpp11	3m 41s
🔧 MSVC Additional (static_lib)	2m 7s
🔧 MinGW fluidsynth-mingw2 x86	1m 30s
🚧🟧 clang64 glib	4m 7s
🚧🟦 mingw64 cpp11	3m 42s
🧪 Acceptance Test	-1s
🚀 Publish Release Artifacts	-1s
📢 Announce Release	0s
	1h 5m 3s

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