New contrib/fixeddecimal: add support for Cloudberry #30

Job	Run time
check-skip	3s
Build Apache Cloudberry RPM (Rocky 8)	13m 16s
prepare-test-matrix	3s
RPM Install Test Apache Cloudberry (Rocky 8)	2m 38s
pax-ic-good-opt-on (Rocky 8)	26m 53s
pax-ic-isolation2-opt-off (Rocky 8)	23m 16s
ic-resgroup-v2 (Rocky 8)	25m 22s
pax-ic-isolation2-opt-on (Rocky 8)	24m 20s
ic-expandshrink (Rocky 8)	4m 13s
pax-ic-good-opt-off (Rocky 8)	23m 58s
ic-good-opt-on (Rocky 8)	30m 5s
ic-singlenode (Rocky 8)	7m 56s
ic-good-opt-off (Rocky 8)	25m 15s
ic-parallel-retrieve-cursor (Rocky 8)	5m 0s
ic-contrib (Rocky 8)	5m 15s
ic-isolation2-crash (Rocky 8)	4m 56s
ic-fixme (Rocky 8)	3m 31s
ic-gpcontrib (Rocky 8)	4m 28s
ic-isolation2 (Rocky 8)	37m 7s
ic-cbdb-parallel (Rocky 8)	28m 35s
ic-isolation2-hot-standby (Rocky 8)	5m 10s
Generate Apache Cloudberry Build Report (Rocky 8)	2s
	5h 1m 22s

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