Updates all the Projects provided with a single Permission Scheme.
Overview
It would be a good idea to put your Jira instance in "read-only" mode before migrating to Jira Cloud to ensure there is no loss of data during the migration process. However, Jira does not provide this functionality.
One way around this is to change the Permission Scheme for each project to "read-only". This can be tedious, as you have to go through each project individually and change its Permission Scheme.
This script automates that process and sets the Permission Scheme of each project to "read-only".
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