Merge pull request #5981 from BOINC/vko_add_new_windows_signing #5230

Job	Run time
libs-build	7m 45s
apps-build	9m 32s
client-armv6-build	3m 28s
libs-cmake-build	7m 16s
client-arm-build	3m 52s
client-arm64-build	2m 53s
client-x86-build	3m 4s
client-x86_64-build	3m 11s
manager-build (assembleRelease)	4m 11s
manager-build (assembleXiaomi_release)	4m 10s
manager-build (assembleArmv6_release)	3m 53s
manager-build (jacocoTestReportDebug)	5m 53s
	59m 8s

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