Tests: Use c_who -wait when waiting for startd to come up #1065

Job	Run time
build (el9, testing, 24, osg-htc/ospool-ep, amd64)	11m 8s
build (el9, development, 24, osg-htc/ospool-ep, arm64)	9m 14s
build (el9, development, 23, opensciencegrid/osgvo-docker-pilot, amd64)	12m 7s
build (el9, development, 24, osg-htc/ospool-ep, amd64)	9m 54s
build (el9, testing, 24, osg-htc/ospool-ep, arm64)	9m 23s
build (el9, development, 23, opensciencegrid/osgvo-docker-pilot, arm64)	9m 51s
build (el9, testing, 23, opensciencegrid/osgvo-docker-pilot, arm64)	10m 9s
build (el9, testing, 23, opensciencegrid/osgvo-docker-pilot, amd64)	10m 40s
build (cuda_11_8_0, release, 24, osg-htc/ospool-ep, amd64)	12m 28s
build (el9, release, 24, osg-htc/ospool-ep, amd64)	10m 2s
build (el9, release, 23, opensciencegrid/osgvo-docker-pilot, arm64)	9m 46s
build (cuda_11_8_0, release, 23, opensciencegrid/osgvo-docker-pilot, amd64)	8m 51s
build (cuda_11_8_0, release, 24, osg-htc/ospool-ep, arm64)	12m 32s
build (cuda_11_8_0, release, 23, opensciencegrid/osgvo-docker-pilot, arm64)	11m 34s
build (el9, release, 23, opensciencegrid/osgvo-docker-pilot, amd64)	10m 27s
build (el9, release, 24, osg-htc/ospool-ep, arm64)	9m 29s
merge-manifests	-1s
	2h 47m 34s

Provide feedback