Update terraform-openshift4-exoscale to v5.1.0 (#104)

Author: DebakelOrakel

class/defaults.yml

@@ -2,7 +2,7 @@ parameters:
   openshift4_terraform:
     =_tf_module_version:
       cloudscale: v4.4.0
-      exoscale: v5.0.0
+      exoscale: v5.1.0
     images:
       terraform:
         image: registry.gitlab.com/gitlab-org/terraform-images/releases/terraform

tests/golden/exoscale/openshift4-terraform/openshift4-terraform/main.tf.json

@@ -9,7 +9,7 @@
       "ignition_ca": "SomeCertificateString",
       "region": "ch-dk-2",
       "rhcos_template": "my-iso-image",
-      "source": "git::https://github.com/appuio/terraform-openshift4-exoscale.git//?ref=v5.0.0",
+      "source": "git::https://github.com/appuio/terraform-openshift4-exoscale.git//?ref=v5.1.0",
       "ssh_key": "ssh-ed25519 AA..."
     }
   }