Check_MK Werk 4118: check_bi_aggr: changed check and WATO rule to support Kerberos auth

ID: 4118 Title: check_bi_aggr: changed check and WATO rule to support Kerberos auth Component: Checks & Agents Level: 1 Class: New Feature Version: 1.4.0i3 Changed active check "check_bi_aggr" and the related WATO rule to support Kerberos authentication. For this to work Python modules "requests" and "requests_kerberos" are needed. These should be shipped with prepackaged CRE and CEE versions since werk #7612.