Update dependency @grafana/experimental to v2.1.5 (#97846)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

package.json

@@ -263,7 +263,7 @@
     "@grafana/azure-sdk": "0.0.5",
     "@grafana/data": "workspace:*",
     "@grafana/e2e-selectors": "workspace:*",
-    "@grafana/experimental": "2.1.4",
+    "@grafana/experimental": "2.1.5",
     "@grafana/faro-core": "^1.3.6",
     "@grafana/faro-web-sdk": "^1.3.6",
     "@grafana/faro-web-tracing": "^1.8.2",