[Test] Fix monaco import issue in UTs

[mengweieric]

Description

Upstream core dashboard added new dependency @osd/monaco in autocomplete provider. Anomaly dashboards previously had tests where indirectly triggers autocomplete registration in data plugin, and the load of autocomplete providers SQL and DQL

    Cannot find module '!!raw-loader!../../target/public/xjson.editor.worker.js' from '../../packages/osd-monaco/target/xjson/language.js'

    Require stack:
      /Users/runner/work/anomaly-detection-dashboards-plugin/anomaly-detection-dashboards-plugin/OpenSearch-Dashboards/packages/osd-monaco/target/xjson/language.js
      /Users/runner/work/anomaly-detection-dashboards-plugin/anomaly-detection-dashboards-plugin/OpenSearch-Dashboards/packages/osd-monaco/target/xjson/index.js
      /Users/runner/work/anomaly-detection-dashboards-plugin/anomaly-detection-dashboards-plugin/OpenSearch-Dashboards/packages/osd-monaco/target/index.js
      /Users/runner/work/anomaly-detection-dashboards-plugin/anomaly-detection-dashboards-plugin/OpenSearch-Dashboards/src/plugins/data/public/antlr/opensearch_sql/code_completion.ts
      /Users/runner/work/anomaly-detection-dashboards-plugin/anomaly-detection-dashboards-plugin/OpenSearch-Dashboards/src/plugins/data/public/plugin.ts
      /Users/runner/work/anomaly-detection-dashboards-plugin/anomaly-detection-dashboards-plugin/OpenSearch-Dashboards/src/plugins/data/public/index.ts
      /Users/runner/work/anomaly-detection-dashboards-plugin/anomaly-detection-dashboards-plugin/OpenSearch-Dashboards/src/plugins/saved_objects/public/saved_object/helpers/serialize_saved_object.ts
      /Users/runner/work/anomaly-detection-dashboards-plugin/anomaly-detection-dashboards-plugin/OpenSearch-Dashboards/src/plugins/saved_objects/public/saved_object/helpers/build_saved_object.ts
      /Users/runner/work/anomaly-detection-dashboards-plugin/anomaly-detection-dashboards-plugin/OpenSearch-Dashboards/src/plugins/saved_objects/public/saved_object/saved_object.ts
      /Users/runner/work/anomaly-detection-dashboards-plugin/anomaly-detection-dashboards-plugin/OpenSearch-Dashboards/src/plugins/saved_objects/public/saved_object/index.ts
      /Users/runner/work/anomaly-detection-dashboards-plugin/anomaly-detection-dashboards-plugin/OpenSearch-Dashboards/src/plugins/saved_objects/public/plugin.ts
      /Users/runner/work/anomaly-detection-dashboards-plugin/anomaly-detection-dashboards-plugin/OpenSearch-Dashboards/src/plugins/saved_objects/public/index.ts
      /Users/runner/work/anomaly-detection-dashboards-plugin/anomaly-detection-dashboards-plugin/OpenSearch-Dashboards/src/plugins/vis_augmenter/public/saved_augment_vis/saved_augment_vis.ts
      /Users/runner/work/anomaly-detection-dashboards-plugin/anomaly-detection-dashboards-plugin/OpenSearch-Dashboards/src/plugins/vis_augmenter/public/saved_augment_vis/index.ts
      /Users/runner/work/anomaly-detection-dashboards-plugin/anomaly-detection-dashboards-plugin/OpenSearch-Dashboards/src/plugins/vis_augmenter/public/plugin.ts
      /Users/runner/work/anomaly-detection-dashboards-plugin/anomaly-detection-dashboards-plugin/OpenSearch-Dashboards/src/plugins/vis_augmenter/public/index.ts
      public/components/FeatureAnywhereContextMenu/AssociatedDetectors/containers/AssociatedDetectors.tsx
      public/components/FeatureAnywhereContextMenu/AssociatedDetectors/containers/__tests__/AssociatedDetectors.test.tsx

      37 | import { registerWorker } from '../worker_store';
      38 | // @ts-ignore
    > 39 | import workerSrc from '!!raw-loader!../../target/public/xjson.editor.worker.js';
         | ^
      40 |
      41 | const wps = new WorkerProxyService();
      42 |

      at Resolver.resolveModule (../../node_modules/jest-resolve/build/resolver.js:324:11)
      at Object.<anonymous> (../../packages/osd-monaco/src/xjson/language.ts:39:1)
      at Object.<anonymous> (../../packages/osd-monaco/src/xjson/index.ts:34:1)
      at Object.<anonymous> (../../packages/osd-monaco/src/index.ts:32:1)
      at Object.<anonymous> (../../src/plugins/data/public/antlr/opensearch_sql/code_completion.ts:6:1)
      at Object.<anonymous> (../../src/plugins/data/public/plugin.ts:96:1)
      at Object.<anonymous> (../../src/plugins/data/public/index.ts:500:1)
      at Object.<anonymous> (../../src/plugins/saved_objects/public/saved_object/helpers/serialize_saved_object.ts:34:1)
      at Object.<anonymous> (../../src/plugins/saved_objects/public/saved_object/helpers/build_saved_object.ts:34:1)
      at Object.<anonymous> (../../src/plugins/saved_objects/public/saved_object/saved_object.ts:42:1)

to unblock CIs, added monaco import mock to fix.

Issues Resolved

#832
opensearch-project/OpenSearch-Dashboards#7648

Check List

• New functionality includes testing.
  • All tests pass
• New functionality has been documented.
• Commits are signed per the DCO using --signoff

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For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[kaituo]

all tests passed. Merged. @mengweieric