Pin python to 3.13 for ansible 2.19 support (#462)

Signed-off-by: Derek Nola <derek.nola@suse.com>

.github/workflows/build.yml

@@ -15,10 +15,10 @@ jobs:
       - name: Check out the codebase.
         uses: actions/checkout@v4
 
-      - name: Set up Python 3.
+      - name: Set up Python 3.13.
         uses: actions/setup-python@v4
         with:
-          python-version: '3.x'
+          python-version: '3.13.x'
 
       - name: Install test dependencies.
         run: pip3 install ansible