Merge pull request #3328 from yifan-gu/tolerate_all_taints

Merge pull request #3325 from spangenberg/azure_custom_vnet_config

operator: Add toleration to the operators for everything

azure-terraform: check for existence of external subnet id's

azure-terraform: extract correct cloud config for custom vnet

Fix vulnerability in nokogiri (#3326)

azure-terraform: custom vnet resource group (#3323)

Merge pull request #3318 from enxebre/readme-t1

update readme

Merge pull request #3235 from coverprice/alm_fix_mergeback

Merge branch 'track-1' into alm_fix_mergeback

Merge pull request #3114 from squat/fix_ca

Merge pull request #3201 from markable-dev/azure-resource-group-name-regex

Cherry-pick of #3229 from 1.9.6 to track-1

config.tf: bump tls provider to fix CA