feat(deps): Removed support for version 5.0 as this version is no longer available from IBM Cloud Databases (#458)

Author: shemau

tests/pr_test.go

@@ -94,7 +94,7 @@ func TestRunCompleteUpgradeExample(t *testing.T) {
 		BestRegionYAMLPath: regionSelectionPath,
 		ResourceGroup:      resourceGroup,
 		TerraformVars: map[string]interface{}{
-			"mongodb_version": "5.0", // Always lock to the lowest supported MongoDB version
+			"mongodb_version": "6.0", // Always lock to the lowest supported MongoDB version
 			"users": []map[string]interface{}{
 				{
 					"name":     "testuser",

variables.tf

@@ -21,9 +21,8 @@ variable "mongodb_version" {
     condition = anytrue([
       var.mongodb_version == null,
       var.mongodb_version == "6.0",
-      var.mongodb_version == "5.0",
     ])
-    error_message = "Version must be 5.0 or 6.0. If no value is passed, the current preferred version of IBM Cloud Databases is used."
+    error_message = "Version must be 6.0. If no value is passed, the current preferred version of IBM Cloud Databases is used."
   }
 }