Update .github/workflows/test-and-publish.yaml

Co-authored-by: Caleb Aikens <[email protected]>

Author: philippedistributive

.github/workflows/test-and-publish.yaml

@@ -250,7 +250,7 @@ jobs:
           name: cores-${{ matrix.os }}-${{ matrix.python_version }}
           path: /cores
   sdist:
-    runs-on: [ubuntu-20.04, ubuntu-24.04]
+    runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@v4
         with: