deps: bump github.com/Azure/azure-container-networking from 1.5.21 to 1.6.20 in /azure-ipam#3399

rbtr merged 1 commit intomasterAzure/azure-container-networking:masterfrom

3dcddependabot/go_modules/azure-ipam/github.com/Azure/azure-container-networking-1.6.20Azure/azure-container-networking:3dcddependabot/go_modules/azure-ipam/github.com/Azure/azure-container-networking-1.6.20Copy head branch name to clipboard