Improve security plugin enabling check

[Hailong-am]

Issue #, if available:

Description of changes:

If security plugins is not installed, endpoint https://localhost:9200 is not accessible. In this case, the way we determine security is enabled or not is not valid.

cluster_running=`curl -XGET https://localhost:9200/_cat/plugins -u admin:admin --insecure`
echo $cluster_running
security=`curl -XGET https://localhost:9200/_cat/plugins -u admin:admin --insecure |grep opensearch-security|wc -l`
echo $security
if [ $security -gt 0 ]

change it to below is more reliable

container_id=`docker ps -q`
security =`docker exec $container_id /usr/share/opensearch/bin/opensearch-plugin list | grep opensearch-security | wc -l`

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[codecov]

Codecov Report

Merging #1017 (e2d51e2) into main (cd99b0f) will decrease coverage by 0.04%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##               main    #1017      +/-   ##
============================================
- Coverage     74.77%   74.74%   -0.04%     
  Complexity     2789     2789              
============================================
  Files           366      366              
  Lines         16360    16360              
  Branches       2337     2337              
============================================
- Hits          12234    12229       -5     
- Misses         2830     2834       +4     
- Partials       1296     1297       +1     

see 5 files with indirect coverage changes