chore: update mockito to version 2.21.0
chore: update mockito to version 2.21.0

cousquer/uPortal,groybal/uPortal,cousquer/uPortal,ChristianMurphy/uPortal,Jasig/uPortal,groybal/uPortal,Jasig/uPortal,mgillian/uPortal,bjagg/uPortal,GIP-RECIA/esco-portail,GIP-RECIA/esco-portail,bjagg/uPortal,GIP-RECIA/esco-portail,jonathanmtran/uPortal,jonathanmtran/uPortal,jonathanmtran/uPortal,bjagg/uPortal,mgillian/uPortal,ChristianMurphy/uPortal,Jasig/uPortal,mgillian/uPortal,groybal/uPortal,groybal/uPortal,groybal/uPortal,ChristianMurphy/uPortal,cousquer/uPortal