manage cloud-config / runtime-config change

[poblin-orange]

Is your feature request related to a problem? Please describe.

When there is a git changes triggering bosh cloud-config or runtime-config,,the director is updated, but the related deployments are not deployed

Describe the solution you'd like
For better convergence, it would be usefull to retrigger the bosh deployments after a cloud-config / runtime-config change

Describe alternatives you've considered
document the retrigger all for operators (which defeat the gitops approach of COA)

Additional context
cloud-config and runtime-config are new versionned. There is a concourse resource which migh be usefull as a trigger dependency of all the bosh deployments
https://github.com/cloudfoundry-community/bosh-config-resource

[o-orand]

This resource seems to match requirements for detecting changes (ie in).

To be able to use it as out in our context, currently bosh-config-resource it doesn't not support ops and var files. It should be possible with a PR from EngineerBetter/bosh-config-resource@3839594 to bosh-config-resource