Fix C# build #1746

Job	Run time
Run CodeQL tests	3m 14s
Build on Ubuntu for androidarm	1m 9s
Run Coverity tests	0s
Build on Fedora 40	1m 8s
Build on Ubuntu for androidarm64	55s
Build on Fedora 41	1m 6s
Build on Ubuntu for androidx86_64	1m 11s
Build on macOS for macos	3m 7s
Build on Fedora rawhide	1m 1s
Deploy pages	0s
Build on macOS for iphoneos	2m 50s
Build on macOS for iphonesimulator	2m 51s
Build on Ubuntu 22.04	2m 41s
Build on Ubuntu 24.04	2m 32s
Build on Windows (143, x86)	6m 48s
Build on Ubuntu 24.10	2m 44s
Build on Windows (143, x64)	6m 50s
Build on Windows (143, arm64)	5m 32s
Build on Windows (142, x86)	6m 55s
Build on Windows (142, x64)	6m 39s
Build on Windows (142, arm64)	5m 53s
	1h 5m 6s

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