feat(docs): add indexer docs update script (#1872)

* feat(docs): add indexer docs update script

Add Python script to automatically update indexer documentation from YAML definitions.

- Creates a markdown table of supported indexers with feature support
- Sorts indexers alphabetically with generics at the end
- Includes support status for IRC and RSS features
- Outputs documentation to autobrr.com/snippets/indexers.mdx

* fix: use existing PAT

* fix: use correct token

* feat(docs): add freeleech support documentation

.github/workflows/update-indexers.yml

@@ -0,0 +1,64 @@
+name: Update Indexers List
+
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: '0 0 * * *'
+  repository_dispatch:
+    types: [update-indexers]
+
+jobs:
+  update-indexers:
+    runs-on: ubuntu-latest
+    
+    steps:
+    - name: Check out autobrr.com repo
+      uses: actions/checkout@v3
+      with:
+        repository: 'autobrr/autobrr.com'
+        path: 'autobrr.com'
+        token: ${{ secrets.DOCS_TOKEN }}
+
+    - name: Check out autobrr repo
+      uses: actions/checkout@v3
+      with:
+        repository: 'autobrr/autobrr'
+        path: 'autobrr'
+
+    - name: Set up Python
+      uses: actions/setup-python@v4
+      with:
+        python-version: '3.x'
+
+    - name: Update indexers list
+      run: python3 autobrr/scripts/update-indexers.py
+
+    - name: Create Pull Request
+      run: |
+        cd autobrr.com
+        git config --local user.email "github-actions[bot]@users.noreply.github.com"
+        git config --local user.name "github-actions[bot]"
+        
+        # Create a new branch
+        BRANCH_NAME="update-indexers-$(date +%Y%m%d-%H%M%S)"
+        git checkout -b $BRANCH_NAME
+        
+        # Add and commit changes
+        git add snippets/indexers.mdx snippets/freeleech.mdx
+        
+        # Only proceed if there are changes
+        if ! git diff --quiet && ! git diff --staged --quiet; then
+          git commit -m "docs: update indexers and freeleech support lists"
+          git push origin $BRANCH_NAME
+          
+          # Create PR using GitHub CLI
+          gh pr create \
+            --repo autobrr/autobrr.com \
+            --base main \
+            --head $BRANCH_NAME \
+            --title "docs: update indexers and freeleech support lists" \
+            --body "Automated update of the indexers and freeleech support lists from definitions" \
+            --label "documentation"
+        fi
+      env:
+        GITHUB_TOKEN: ${{ secrets.DOCS_TOKEN }}