go-jira: Add versions and fixVersions fields to the edit template

[rvl]

Issue Number

Found during ADP-952

Overview

Adds the fixVersions field to the go-jira editing template.

Comments

With this change, it's possible to automate some ticket updating tasks like so:

#!/usr/bin/env bash
for ticket in ADP-{955,956,957,958,959,960}; do
  jira edit $ticket --noedit -o "fixVersions=Alonzo White"
  jira labels add $ticket "Alonzo-White"
  jira issuelink ADP-952 Blocks $ticket
done