Escape curly bracket templating correctly

Author: sd109

chart/templates/api/config-map-grafana-dashboard-details.yml

@@ -1009,7 +1009,7 @@ data:
               "fullMetaSearch": false,
               "includeNullMetadata": true,
               "instant": false,
-              "legendFormat": "\{\{le\}\}",
+              "legendFormat": {{ "{{" }}le{{ "}}" }},
               "range": true,
               "refId": "A",
               "useBackend": false
@@ -1101,7 +1101,7 @@ data:
               "fullMetaSearch": false,
               "includeNullMetadata": true,
               "instant": false,
-              "legendFormat": "\{\{le\}\}",
+              "legendFormat": {{ "{{" }}le{{ "}}" }},
               "range": true,
               "refId": "A",
               "useBackend": false