chore(deps): update github actions (major) to v6

Author: renovate[bot]

.github/workflows/main.yml

@@ -16,11 +16,11 @@ jobs:
 
     steps:
     # Check out repository under $GITHUB_WORKSPACE, so the job can access it
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
 
     # Run using Python 3.8 for consistency and aiohttp
     - name: Set up Python 3.8
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@v6
       with:
         python-version: '3.14'
         architecture: 'x64'