Fix aoco_relation_size() using wrong snapshot to read pg_aocsseg #156

Job	Run time
check-skip	3s
Build Apache Cloudberry RPM (Rocky 8)	12m 43s
prepare-test-matrix	4s
RPM Install Test Apache Cloudberry (Rocky 8)	1m 58s
pax-ic-isolation2-opt-off (Rocky 8)	23m 6s
pax-ic-good-opt-on (Rocky 8)	28m 27s
ic-good-opt-on (Rocky 8)	27m 25s
ic-resgroup-v2 (Rocky 8)	23m 14s
ic-gpcontrib (Rocky 8)	4m 11s
ic-singlenode (Rocky 8)	8m 9s
ic-fixme (Rocky 8)	3m 40s
ic-contrib (Rocky 8)	5m 6s
pax-ic-isolation2-opt-on (Rocky 8)	24m 40s
ic-isolation2-crash (Rocky 8)	6m 38s
ic-good-opt-off (Rocky 8)	27m 12s
pax-ic-good-opt-off (Rocky 8)	23m 23s
ic-parallel-retrieve-cursor (Rocky 8)	4m 49s
ic-isolation2-hot-standby (Rocky 8)	5m 18s
ic-isolation2 (Rocky 8)	37m 48s
ic-cbdb-parallel (Rocky 8)	28m 43s
ic-expandshrink (Rocky 8)	4m 3s
ic-recovery (Rocky 8)	12m 31s
gpcontrib-gp-stats-collector (Rocky 8)	3m 16s
Generate Apache Cloudberry Build Report (Rocky 8)	4s
	5h 16m 31s

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