Fix GPG verify path for staged release artifacts #3530

Job	Run time
check-skip	3s
Build Apache Cloudberry RPM	13m 28s
prepare-test-matrix	4s
RPM Install Test Apache Cloudberry	2m 11s
pax-ic-isolation2-opt-on	23m 21s
pax-ic-good-opt-off	23m 20s
pax-ic-good-opt-on	26m 25s
ic-good-opt-on	26m 49s
pax-ic-isolation2-opt-off	23m 16s
ic-singlenode	8m 27s
ic-gpcontrib	2m 45s
ic-diskquota	8m 50s
ic-resgroup-v2	19m 37s
ic-contrib	3m 39s
ic-isolation2	36m 39s
ic-fixme	3m 17s
ic-isolation2-crash	4m 56s
ic-parallel-retrieve-cursor	4m 55s
ic-expandshrink	4m 54s
ic-isolation2-hot-standby	5m 2s
ic-cbdb-parallel	27m 50s
ic-good-opt-off	25m 1s
Generate Apache Cloudberry Build Report	4s
	4h 54m 53s

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