deps: bump github.com/spf13/viper from 1.19.0 to 1.20.0#3510

dependabot[bot] wants to merge 1 commit intomasterAzure/azure-container-networking:masterfrom

a0b0dependabot/go_modules/github.com/spf13/viper-1.20.0Azure/azure-container-networking:a0b0dependabot/go_modules/github.com/spf13/viper-1.20.0Copy head branch name to clipboard