Update patch_versions.md with explicit --with statement for db gem group
## What does this MR do?
Updates `patch_versions.md`'s instructions on installing gems to explicitly install either the postgres or mysql groups.
## Are there points in the code the reviewer needs to double check?
No, but thank you for your time.
## Why was this MR needed?
I performed the steps listed in `patch_versions.md` and ran the command for updating postgres gems. Bundler told me at the end that it had not installed the postgres gem group, which caused the next step, migrating the DB, to fail for obvious reasons.
Changing the command to `--with postgres` made it install the postgres gem group, and db:migrate then passed.
## What are the relevant issue numbers?
None
## Screenshots (if relevant)
N/A
See merge request !3955
Prepend letter v to GitLab Workhorse version numbers
This helps to address gitlab-org/gitlab-ce#12684 so as to maintain consistency in all GitLab projects.
It also addresses: https://gitlab.com/gitlab-org/gitlab-workhorse/issues/4
Next Steps
- create a set of duplicate tags in workhorse to prevent errors when updating from the patch guide
See merge request !3088
Rémy Coutable
Jacob Vosmaer (GitLab)
mike
Christian Mehlmauer
Kelvin
Kelvin
Achilleas Pipinellis
Benny Schimmer
Jan Bruckner
Vinnie Okada
Ben BodenmillerandJeroen van Baarsen
Sytse Sijbrandij
Ciro Santilli
Dmitriy Zaporozhets
Arif Ali
Jacob Vosmaer
dosire
Sytse Sijbrandij