CI: Pin Python to 3.13

Author: Epse

.github/workflows/ci.yml

@@ -32,5 +32,5 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: astral-sh/setup-uv@v6
-      - run: uv python install
+      - run: uv python install python3.13
       - run: uv run pytest

pyproject.toml

@@ -2,7 +2,7 @@
 name = "obelisk-py"
 description = "The one Obelisk client to rule them all"
 readme = "README.md"
-requires-python = ">=3.9"
+requires-python = ">=3.9,<3.14"
 dependencies = [
     "ruff>=0.9.6",
     "httpx>=0.28.1",