Revert "upgrade solr to prevent the issues : XML eXternal Entity (XXE) flaw in XML and XSLT UpdateRequestHandler, directory traversal when loading XSL stylesheets and Velocity templates, XML eXternal Entity (XXE) flaw in DocumentAnalysisRequestHandler"
Revert "upgrade solr to prevent the issues : XML eXternal Entity (XXE) flaw in XML and XSLT UpdateRequestHandler, directory traversal when loading XSL stylesheets and Velocity templates, XML eXternal Entity (XXE) flaw in DocumentAnalysisRequestHandler"

This reverts commit fa5a1902dbd587465f8b6c64022354c014118709.

wikier/marmotta-search,wikier/marmotta-search,wikier/marmotta-search