Update Calico from v3.7.2 to v3.7.3

* https://docs.projectcalico.org/v3.7/release-notes/

azure/container-linux/kubernetes/bootkube.tf

@@ -1,6 +1,6 @@
 # Self-hosted Kubernetes assets (kubeconfig, manifests)
 module "bootkube" {
-  source = "git::https://github.com/poseidon/terraform-render-bootkube.git?ref=0103bc06bb3f597455a765bf5d916f9b241cbea0"
+  source = "git::https://github.com/poseidon/terraform-render-bootkube.git?ref=89c3ab4e2742c4e15865f0599c85cdac1ec88a6c"
 
   cluster_name = var.cluster_name
   api_servers  = [format("%s.%s", var.cluster_name, var.dns_zone)]