pg_dump/psql: properly recognize GP #3892

Job	Run time
check-skip	3s
prepare-test-matrix	3s
Build Apache Cloudberry RPM	14m 17s
RPM Install Test Apache Cloudberry	3m 2s
pax-ic-isolation2-opt-on	22m 45s
ic-good-opt-on	27m 2s
pax-ic-good-opt-on	28m 32s
gpcontrib-gp-stats-collector	3m 11s
ic-resgroup-v2	19m 42s
ic-isolation2-hot-standby	5m 11s
ic-cbdb-parallel	29m 30s
ic-contrib	4m 14s
ic-parallel-retrieve-cursor	5m 20s
ic-isolation2-crash	4m 21s
ic-diskquota	8m 54s
ic-good-opt-off	25m 15s
pax-ic-isolation2-opt-off	23m 23s
ic-singlenode	8m 2s
ic-gpcontrib	4m 3s
ic-fixme	3m 24s
ic-isolation2	37m 45s
pax-ic-good-opt-off	21m 48s
ic-expandshrink	4m 58s
Generate Apache Cloudberry Build Report	3s
	5h 4m 48s

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