github: drop -dev from Python 3.13

Author: dlech

.github/workflows/build_and_test.yml

@@ -14,7 +14,7 @@ jobs:
             fail-fast: false
             matrix:
                 os: [ubuntu-latest, windows-latest, macos-latest]
-                python-version: ['3.8', '3.9', '3.10', '3.11', '3.12', '3.13-dev']
+                python-version: ['3.8', '3.9', '3.10', '3.11', '3.12', '3.13']
         steps:
             -   uses: actions/checkout@v4
             -   name: Set up Python ${{ matrix.python-version }}