Fix blob files not reclaimed after deleting all SSTs#464
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facebook/rocksdb#12235
change ubuntu-latest to ubuntu-22.04 in Tendis-CI.yml
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开启blob功能的情况下，容易出现新建从节点无法全量同步的问题，备份时容易出现无法生成备份的问题。
#465
主要原因是rocksdb有bug，在columnfamily下面的所有sst文件都被删除的情况下，无法回收blob文件。
see details:
facebook/rocksdb#12235
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