Fix coverity warnings #408

Job	Run time
Build on macOS for iphonesimulator	1m 5s
Build on Windows (windows-2025, x64)	19m 44s
Build on macOS for iphoneos	1m 13s
Build on Windows (windows-2025, arm64)	16m 50s
Build on macOS for macos	1m 9s
Build on Ubuntu for androidarm64	1m 41s
Build on Ubuntu for androidarm	1m 41s
Run Coverity tests	2m 8s
Build on Ubuntu for androidx86_64	1m 43s
Build on Ubuntu 22.04 amd64	2m 16s
Build on Ubuntu 25.04 arm64	2m 16s
Build on Ubuntu 24.04 amd64	2m 18s
Build on Ubuntu 25.04 amd64	2m 21s
Build on Ubuntu 24.04 arm64	2m 15s
Deploy pages	-1s
Build on Ubuntu 22.04 arm64	2m 11s
Run CodeQL tests	3m 52s
	1h 4m 42s

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