Speed up unit testing CI by updating maxWorkers setting (#884) (#885)

* Set max CI workers to 2



* Try setting to 100% of workers



---------


(cherry picked from commit a39265a)

Signed-off-by: Simeon Widdis <sawiddis@amazon.com>
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

.github/workflows/dashboards-observability-test-and-build-workflow.yml

@@ -60,7 +60,7 @@ jobs:
       - name: Test all dashboards-observability modules
         run: |
           cd OpenSearch-Dashboards/plugins/dashboards-observability
-          yarn test --coverage
+          yarn test --coverage --maxWorkers=100%
 
       - name: Upload coverage
         if: ${{ matrix.os == 'ubuntu-latest' }}