use v3.14 for upstream-dev-ci

Author: mathause

.github/workflows/upstream-dev-ci.yaml

@@ -35,7 +35,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.13"]
+        python-version: ["3.14"]
     steps:
       - uses: actions/checkout@v6
         with: