Replace forkMode with forkCount
Replace forkMode with forkCount

forkMode has been deprecated since surefire version 2.14 and been
replaced with forkCount and reuseForks.

Signed-off-by: Philippe Marschall <0e01f3e62e9e0cc61706efefa3a861ca52096384@gmail.com>

g-votte/eclipse-collections,bhav0904/eclipse-collections,bhav0904/eclipse-collections,g-votte/eclipse-collections,bhav0904/eclipse-collections