[DOCS] key rejection is not mentioned in the guides when AES key rotation situations happens

Description
Is not obvious that key rejection causes AES rotation for publications.

Suggested Fix

https://docs.saltproject.io/en/latest/topics/tutorials/intro_scale.html#too-many-minions-re-authing

The Salt Master generates a new AES key to encrypt its publications at certain events such as a Master restart or the removal of a Minion key. If you are encountering this problem of too many minions re-authing against the Master, you will need to recalibrate your setup to reduce the rate of events like a Master restart or Minion key removal (salt-key -d).

TO

The Salt Master generates a new AES key to encrypt its publications at certain events such as a Master restart or the removal/rejection of a Minion key. If you are encountering this problem of too many minions re-authing against the Master, you will need to recalibrate your setup to reduce the rate of events like a Master restart, Minion key removal (salt-key -d) or Minion key rejection (salt-key -r).

https://docs.saltproject.io/en/getstarted/system/communication.html in "ROTATING SECURITY KEYS"

A rotating AES key is used to encrypt jobs that are sent to the Salt minion by the Salt master, and to encrypt connections to the Salt master fileserver. A new key is generated and used each time the Salt master restarts and each time a Salt minion key is deleted using the salt-key command.

TO

A rotating AES key is used to encrypt jobs that are sent to the Salt minion by the Salt master, and to encrypt connections to the Salt master fileserver. A new key is generated and used each time the Salt master restarts and each time a Salt minion key is deleted/rejected using the salt-key command.

https://docs.saltproject.io/en/latest/ref/cli/salt-key.html

Add a huge warning and backlinking to performance guide for key removal/rejection sections

Type of documentation
Guides

Location or format of documentation
https://docs.saltproject.io/en/getstarted/system/communication.html
https://docs.saltproject.io/en/latest/topics/tutorials/intro_scale.html#too-many-minions-re-authing
https://docs.saltproject.io/en/latest/ref/cli/salt-key.html

Additional context

Review the three specified documentation locations: the “Too many minions re-authing” section in intro_scale.html, “ROTATING SECURITY KEYS” in communication.html, and the removal/rejection sections of salt-key.html. Update each location to mention rejected keys, add the requested warning and backlink, then verify the wording and links in the rendered documentation.