docs: improve code comment in the `PluginSetupProcessor`

[heueristik]

Description

Task ID: OS-829

Type of change

• docs

Checklist:

• [x] I have selected the correct base branch.
• [x] I have performed a self-review of my own code.
• [x] I have commented my code, particularly in hard-to-understand areas.
• [x] My changes generate no new warnings.
• [x] Any dependent changes have been merged and published in downstream modules.
• [x] I ran all tests with success and extended them if necessary.
• [x] I have updated the CHANGELOG.md file in the root folder.
• [x] I have updated the DEPLOYMENT_CHECKLIST file in the root folder.
• [x] I have updated the UPDATE_CHECKLIST file in the root folder.
• [x] I have updated the Subgraph and added a QA URL to the description of this PR.

[heueristik]

Comment is good, though applyMultiTargetPermissions is called 3 times. Shalln't we add the same comment in all 3 places ? Though note that in one case, it will be installing dao, then uninstalling dao and upgrading dao.

Absolutely, thx for catching it.