Update dependency @grafana/experimental to v2 (#93919)

* Update dependency @grafana/experimental to v2

* add data-testid to old save button so it works properly in e2e test

* fix azure monitor e2e tests

* use raw selectors

* remove .only

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Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: Ashley Harrison <ashley.harrison@grafana.com>

package.json

@@ -256,7 +256,7 @@
     "@grafana/azure-sdk": "0.0.3",
     "@grafana/data": "workspace:*",
     "@grafana/e2e-selectors": "workspace:*",
-    "@grafana/experimental": "1.8.0",
+    "@grafana/experimental": "2.1.1",
     "@grafana/faro-core": "^1.3.6",
     "@grafana/faro-web-sdk": "^1.3.6",
     "@grafana/faro-web-tracing": "^1.8.2",