Merge topic 'test-clang-15'

91987aec24 Tests: Add missing return types to C function prototypes

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: buildbot <buildbot@kitware.com>
Reviewed-by: Raul Tambre <raul@tambre.ee>
Merge-request: !7260