chore(deps): bump github.com/stackitcloud/stackit-sdk-go/services/sqlserverflex from 1.4.0 to 1.4.3

chore(deps): bump github.com/stackitcloud/stackit-sdk-go/services/sqlserverflex from 1.4.0 to 1.4.3 #4008