feat(helm): support custom release name in OpenSearch config (#845)

[mdonadoni]

Additional values to change (to be added to the docs page):

• components.reana_workflow_controller.environment.REANA_OPENSEARCH_HOST: <release>-opensearch-master
• opensearch.clusterName: <release>-opensearch
• opensearch.masterService: <release>-opensearch-master
• opensearch.tls.cert.cn: <release>-opensearch-master
• opensearch.config.opensearch.yml (if modified): cluster.name: <release>-opensearch
• opensearch.secretMounts[0].secretName: <release>-opensearch-tls-secrets
• opensearch.securityConfig.internalUsersSecret: <release>-opensearch-config-secrets
• opensearch.securityConfig.rolesSecret: <release>-opensearch-config-secrets
• opensearch.securityConfig.rolesMappingSecret: <release>-opensearch-config-secrets
• opensearch.extraEnvs[name==OPENSEARCH_INITIAL_ADMIN_PASSWORD].valueFrom.secretKeyRef.name: <release>-opensearch-secrets
• fluent-bit.outputConfig.host: <release>-opensearch-master
• fluent-bit.extraVolumes[0].secret.secretName: <release>-opensearch-tls-secrets
• fluent-bit.priorityClassName: <release>-fluent-bit-priority-class

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 31.06%. Comparing base (d81a814) to head (1bea10b).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #845   +/-   ##
=======================================
  Coverage   31.06%   31.06%           
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  Files          26       26           
  Lines        2488     2488           
=======================================
  Hits          773      773           
  Misses       1715     1715