GRD-115411 Updated milvus support version in readme#1050

zeeIBM wants to merge 1 commit intorelease-v1.7.0IBM/universal-connectors:release-v1.7.0from

GRD-115411_mil_readme_1.7IBM/universal-connectors:GRD-115411_mil_readme_1.7Copy head branch name to clipboard