ci: update workflow file

workflow will now use python 3.13
diff --git a/.github/workflows/deploy-site.yml b/.github/workflows/deploy-site.yml
index c7cd276..24c4a4a 100644
--- a/.github/workflows/deploy-site.yml
+++ b/.github/workflows/deploy-site.yml
@@ -37,7 +37,7 @@
           ref: master
       - uses: actions/setup-python@v5
         with:
-          python-version: '3.8'
+            python-version: '3.13'
       - name: Install Dependencies
         run: |
           sudo apt-get update