chore: fix compiler warnings #1789

Job	Run time
Formatting Check	2m 24s
build (5.15.2, false, linux, ubuntu-latest, linux, linux, linux-x86_64, -DGENERATE_APPDATA=ON)	15m 34s
build (5.15.2, false, macos, macos-latest, mac, mac, darwin64-x86_64-cc, 1)	18m 8s
build (5.15.2, false, win64, windows-latest, win, windows, win64_msvc2019_64, win64_msvc2017_64, ...	20m 40s
build (5.15.2, false, win32, windows-latest, win, windows, win32_msvc2019, win32_msvc2017, VC-WIN...	22m 40s
build (5.12.0, true, linux, ubuntu-latest, linux, linux, linux-x86_64, -DGENERATE_APPDATA=ON)	14m 17s
build (5.12.0, true, macos, macos-latest, mac, mac, darwin64-x86_64-cc, 1)	23m 28s
build (5.12.0, true, win64, windows-latest, win, windows, win64_msvc2019_64, win64_msvc2017_64, V...	29m 19s
build (5.12.0, true, win32, windows-latest, win, windows, win32_msvc2019, win32_msvc2017, VC-WIN3...	25m 42s
Flatpak	14m 13s
publish	0s
	3h 6m 25s

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