Update main.yml

Signed-off-by: Jaseem Jas <[email protected]>

Author: jaseemjaskp

.github/workflows/main.yml

@@ -8,7 +8,7 @@ on:
 jobs:
   pypi-publish:
     name: upload release to PyPI
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     permissions:
       contents: read
       id-token: write
@@ -20,7 +20,7 @@ jobs:
       - name: Setup PDM
         uses: pdm-project/setup-pdm@v4
         with:
-          python-version: 3.12.3
+          python-version: 3.9.6
           version: 2.10.0
 
       - name: Publish package distributions to PyPI