Bump ruby API version when setting GEM_HOME
Bump ruby API version when setting GEM_HOME

Until we figure out something better.

Signed-off-by: Caleb Miles <906dbe5b21c7025e252f807d6724eb4d0fd7fb4c@pivotal.io>

wcamarao/bosh-aws-cpi-release,cloudfoundry-incubator/bosh-aws-cpi-release,jfuerth/bosh-aws-cpi-release,ritazh/bosh-aws-cpi-release,cloudfoundry-incubator/bosh-aws-cpi-release,sedouard/bosh-aws-cpi-release,jfuerth/bosh-aws-cpi-release,tracyde/bosh-aws-cpi-release,ritazh/bosh-aws-cpi-release,tracyde/bosh-aws-cpi-release,ritazh/bosh-aws-cpi-release,wcamarao/bosh-aws-cpi-release,sedouard/bosh-aws-cpi-release,jfuerth/bosh-aws-cpi-release,wcamarao/bosh-aws-cpi-release,tracyde/bosh-aws-cpi-release,sedouard/bosh-aws-cpi-release,cloudfoundry-incubator/bosh-aws-cpi-release