OSPOOL-158: Add NRP OSPool EP image builds #1435

Job	Run time
make-date-tag	4s
build-image-list	5s
build (osg-htc/nrp-ospool-ep, el9-25-release-True-False)	8s
build (osg-htc/nrp-ospool-ep, el9-24-release-True-False)	5s
push	0s
	22s

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