Update resgroup option names for latest versions

[gfphoenix78]

The Greenplum upstream had renamed resgroup option names two times in gpdb7. The latest names are not updated in cbcopy.

The commits to rename option names are:
greenplum-db/gpdb-archive@7a4c80d7e3dbab86c greenplum-db/gpdb-archive@483adea86b50c1759

The affected name changes are:
cpu_rate_limit -> cpu_hard_quota_limit -> cpu_max_percent cpu_soft_priority -> cpu_weight

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[robertmu]

LGTM