Bump commons-io from 2.4 to 2.6
Bump commons-io from 2.4 to 2.6

Bumps commons-io from 2.4 to 2.6.

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
srinivasupadhya/email-notifier,srinivasupadhya/email-notifier,gocd-contrib/email-notifier,gocd-contrib/email-notifier