Restore setups

Signed-off-by: Peter Zhu <[email protected]>

Author: peterzhuamazon

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

@@ -29,7 +29,7 @@ jobs:
             test_filter: -PincludeTests="org.opensearch.indexmanagement.indexstatemanagement*"
           - feature: non-ism
             test_filter: -PexcludeTests="org.opensearch.indexmanagement.indexstatemanagement*"
-    runs-on: ${{ matrix.os }}
+    runs-on: ubuntu-latest
     container:
       # using the same image which is used by opensearch-build team to build the OpenSearch Distribution
       # this image tag is subject to change as more dependencies and updates will arrive over time