chore: remove sync workflow

.github/workflows/sync.yml

@@ -1,14 +0,0 @@
-name: GB Redis Setup Sync
-
-on:
-  workflow_dispatch:
-  push:
-    tags:
-      - '*'
-
-jobs:
-  run:
-    uses: glowingblue/flarum-workflow-sync/.github/workflows/sync.yml@master
-    secrets: inherit
-    with:
-      tag: ${{ github.ref_name }}

composer.json

@@ -37,12 +37,6 @@
       "role": "Developer"
     }
   ],
-  "repositories": {
-    "extiverse": {
-      "type": "composer",
-      "url": "https://extiverse.com/composer/"
-    }
-  },
   "autoload": {
     "psr-4": {
       "GlowingBlue\\RedisSetup\\": "src/"