fix: tests + version

- Update code as per go 1.19.3
- Fix tests for unused vars

server/db/models/email_templates.go

@@ -1,6 +1,7 @@
 package models
 
 import (
+	"encoding/json"
 	"strings"
 
 	"github.com/authorizerdev/authorizer/server/graph/model"
@@ -35,3 +36,10 @@ func (e *EmailTemplate) AsAPIEmailTemplate() *model.EmailTemplate {
 		UpdatedAt: refs.NewInt64Ref(e.UpdatedAt),
 	}
 }
+
+func (e *EmailTemplate) ToMap() map[string]interface{} {
+	res := map[string]interface{}{}
+	data, _ := json.Marshal(e) // Convert to a json string
+	json.Unmarshal(data, &res) // Convert to a map
+	return res
+}