Release Apache Amoro 0.7.0-rc2

Release Apache Amoro 0.7.0-rc1

Release Amoror 0.6.1

Release Amoro 0.6.1

[AMORO-2253] Mixed Format `optimized-sequence` should not contains th…

…e skipped partitions (apache#2249)

(cherry picked from commit 4f70e5e)

[AMORO-2208] Validate NULL data expiration configuration (apache#2209)

[AMORO-2180]: Remove existed database/table check when delete externa…

…l catalog (apache#2182)

* Fix delete catalog bug

* Fix delete catalog bug

* Add catalog delete check