Fix typo in workflow file

Author: polm

.github/workflows/test_manylinux.yml

@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [ 3.8, 3.9, "3.10", "3.11", "3.12 ]
+        python-version: [ 3.8, 3.9, "3.10", "3.11", "3.12" ]
     env:
       PYTHON: python${{ matrix.python-version }}
     steps: