feat(ruby): update ruby version from `2.6.3` to `2.6.5`
feat(ruby): update ruby version from `2.6.3` to `2.6.5`

Signed-off-by: Yghor Kerscher <95d23bc6109ee665a51a66121173c9c2a1098109@acm.org>

kerscher/dotfiles