Remove beta release channel support

Author: alexphillips-dev

.github/CODEOWNERS

@@ -8,4 +8,3 @@
 /tests/ @alexphillips-dev
 /folderview.plus.plg @alexphillips-dev
 /folderview.plus.xml @alexphillips-dev
-/folderview.plus.beta.xml @alexphillips-dev

.github/workflows/ci.yml

@@ -4,7 +4,6 @@ on:
   push:
     branches:
       - main
-      - beta
       - reset-main
   pull_request:
 

.github/workflows/codeql.yml

@@ -4,11 +4,9 @@ on:
   push:
     branches:
       - main
-      - beta
   pull_request:
     branches:
       - main
-      - beta
   schedule:
     - cron: '17 6 * * 1'
 
@@ -41,4 +39,3 @@ jobs:
 
       - name: Perform CodeQL Analysis
         uses: github/codeql-action/analyze@v3
-