issue: https://github.com/milvus-io/milvus/issues/38877
refactor pymilvus client v2 testcasebase
add a test for search hint
update pymilvus to 2.6
pr: #38939
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Signed-off-by: yanliang567 <yanliang.qiao@zilliz.com>
related issue: #36963
1. add alias tests with rename collection for issue #36963
2. update some test levels
3. fix some xfail tests
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Signed-off-by: yanliang567 <yanliang.qiao@zilliz.com>