Bug#1074967: freeorion: ftbfs with GCC-14

[O01eg]

The recent version of `master` and `release-v0.5` branches as well as `v0.5.0.1` release builds with gcc-14 on Debian sid:

https://github.com/o01eg/freeorion/actions/runs/10132148490/job/28015751096

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