[Bug]: Create Collection failed If varchar field has type params other than max_length

[xige-16]

Is there an existing issue for this?

• I have searched the existing issues

Environment

- Milvus version: master
- Deployment mode(standalone or cluster):
- MQ type(rocksmq, pulsar or kafka):    
- SDK version(e.g. pymilvus v2.0.0rc2):
- OS(Ubuntu or CentOS): 
- CPU/Memory: 
- GPU: 
- Others:

Current Behavior

When using milvus to create FieldSchema of type VarChar, if you specify type params other than max_length, an error will be reported "type param key (max_length) should be specified for varChar field"

Expected Behavior

ignore other useless type params

Steps To Reproduce

No response

Milvus Log

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Anything else?

No response