Loki: Implement keep and drop operations (#73636)

* Update lezer

* Add functionalities for code and builder

* Add comment

package.json

@@ -240,7 +240,7 @@
     "@grafana/faro-core": "1.1.2",
     "@grafana/faro-web-sdk": "1.1.2",
     "@grafana/google-sdk": "0.1.1",
-    "@grafana/lezer-logql": "0.1.8",
+    "@grafana/lezer-logql": "0.1.9",
     "@grafana/lezer-traceql": "0.0.4",
     "@grafana/monaco-logql": "^0.0.7",
     "@grafana/runtime": "workspace:*",