Use non-slim ruby container for bosh-cli test
Use non-slim ruby container for bosh-cli test

curl was removed from slim container and we use it in fly login script.
Non-slim contaier still has curl available.

Curl removal commit:
https://github.com/docker-library/ruby/commit/281978ef87397763e377774740d82c8d87674ae9#diff-a68c083598cb36cf70eaaead1ae18581L25

alphagov/paas-cf,jimconner/paas-cf,alphagov/paas-cf,jimconner/paas-cf,jimconner/paas-cf,jimconner/paas-cf,jimconner/paas-cf,alphagov/paas-cf,alphagov/paas-cf,jimconner/paas-cf,alphagov/paas-cf,alphagov/paas-cf,alphagov/paas-cf,jimconner/paas-cf,alphagov/paas-cf