feat(datamigration): add support for blob to Sql MI identity migrations#8747

gansach wants to merge 1 commit intoAzure:mainAzure/azure-cli-extensions:mainfrom

gansach:feature-datamigration-sqlmi-managedidentitygansach/azure-cli-extensions:feature-datamigration-sqlmi-managedidentityCopy head branch name to clipboard