[OpenSearch] Add more provider credential options#13

aarongerig wants to merge 1 commit intodachcom-digital:maindachcom-digital/pimcore-dynamic-search-index-provider-opensearch:mainfrom

aarongerig:feat/opensearch-credentialsaarongerig/pimcore-dynamic-search-index-provider-opensearch:feat/opensearch-credentialsCopy head branch name to clipboard