Use diego-patched release in jobs
Use diego-patched release in jobs

We only require the updated release in 2 jobs to fix the ssh upload
issue:

* ssh_proxy: the ssh connection is proxied through it
* file_server: it serves the diego_ssh binary that is downloaded when
apps are staged

This should be reverted when diego is officially updated with the fix.

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