resolve error found by stricter compiler on MacOS 15 #197

Job	Run time
get_version	4s
build-and-run-tests-windows	1h 0m 17s
build-and-run-tests-macos (macos-14)	41m 11s
build-and-run-tests-ubuntu	34m 43s
build-and-run-tests-macos (macos-15-intel)	1h 12m 40s
build-and-run-tests-windows	59m 8s
get_version	4s
build-and-run-tests-ubuntu	34m 43s
build-and-run-tests-macos (macos-14)	41m 11s
build-and-run-tests-macos (macos-15-intel)	1h 12m 40s
get_version	4s
build-and-run-tests-windows	58m 52s
build-and-run-tests-macos (macos-15-intel)	1h 12m 40s
build-and-run-tests-ubuntu	34m 43s
build-and-run-tests-macos (macos-14)	41m 11s
build-and-run-tests-windows	57m 19s
get_version	4s
build-and-run-tests-macos (macos-14)	41m 11s
build-and-run-tests-macos (macos-15-intel)	1h 12m 40s
build-and-run-tests-ubuntu	34m 43s
	13h 50m 8s

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