CI: Add Rocky8 workflow with test matrix support #12

Job	Run time
check-skip	3s
Build Apache Cloudberry RPM (Rocky 8)	12m 41s
prepare-test-matrix	4s
RPM Install Test Apache Cloudberry (Rocky 8)	1m 34s
ic-good-opt-off (Rocky 8)	26m 46s
ic-good-opt-on (Rocky 8)	29m 53s
pax-ic-good-opt-on (Rocky 8)	26m 51s
pax-ic-good-opt-off (Rocky 8)	23m 23s
ic-expandshrink (Rocky 8)	4m 28s
ic-gpcontrib (Rocky 8)	4m 37s
ic-isolation2-crash (Rocky 8)	4m 53s
ic-singlenode (Rocky 8)	7m 52s
ic-isolation2 (Rocky 8)	35m 49s
pax-ic-isolation2-opt-on (Rocky 8)	23m 1s
pax-ic-isolation2-opt-off (Rocky 8)	22m 36s
ic-contrib (Rocky 8)	5m 0s
ic-isolation2-hot-standby (Rocky 8)	4m 26s
ic-resgroup-v2 (Rocky 8)	23m 23s
ic-fixme (Rocky 8)	3m 51s
ic-cbdb-parallel (Rocky 8)	26m 5s
ic-parallel-retrieve-cursor (Rocky 8)	4m 39s
Generate Apache Cloudberry Build Report (Rocky 8)	4s
	4h 51m 59s

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