fix InstalledVersionNum for windows build #6216

Job	Run time
launcher (ubuntu-20.04)	4m 19s
launcher (macos-13)	9m 32s
package_builder (ubuntu-20.04)	1m 2s
launcher (windows-latest)	6m 48s
package_builder (macos-13)	1m 40s
package_builder (windows-latest)	1m 47s
Version Baseline	2s
Exec Test (ubuntu-20.04)	8s
Exec Test (ubuntu-22.04)	7s
Exec Test (macos-13)	25s
Exec Test (macos-14)	37s
Exec Test (macos-15)	44s
Exec Test (windows-2019)	15s
Exec Test (windows-2022)	14s
ci_mergeable	1s
Store Artifacts (linux)	6s
Store Artifacts (macos)	14s
Store Artifacts (windows)	6s
	28m 7s

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