fix: use mapped lowercase values in ACL table

[craicoverflow]

Closes #1247

Verification Steps

Run rhoas kafka acl list:

$ rhoas kafka acl list

  PRINCIPAL (5)                                    PERMISSION   OPERATION   DESCRIPTION                    
 ------------------------------------------------ ------------ ----------- ------------------------------- 
  All accounts                                     allow        describe    group is "*"                   
  All accounts                                     allow        describe    cluster is "*"                 
  All accounts                                     allow        describe    topic is "*"                   
  srvc-acct-17601ff7-89f8-48c6-af99-e3e925cc433c   allow        all         topic starts with "RedHat"     
  srvc-acct-17601ff7-89f8-48c6-af99-e3e925cc433c   allow        all         topic starts with "ACL-topic"  

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation change
• Other (please specify)

Checklist

• Documentation added for the feature
• CI and all relevant tests are passing
• Code Review completed
• Verified independently by reviewer

[craicoverflow]

Guides updated: #1247

[wtrocki]

What flipped means? I see we deep copy map

[craicoverflow]

Reversed, will change.

[wtrocki]

Opinionated take:

  All accounts  =>   All Accounts