Add 3.13 support

Author: lirsacc

.github/actions/setup/action.yml

@@ -13,6 +13,7 @@ runs:
       uses: actions/setup-python@v5
       with:
         python-version: ${{ inputs.python }}
+        allow-prereleases: true
         cache: 'pip'
         cache-dependency-path: |
           requirements/*.txt'

.github/workflows/ci.yml

@@ -9,22 +9,26 @@ on:
 jobs:
   lint:
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python: ["3.12", "3.13"]
     steps:
       - uses: actions/checkout@v4
       - uses: ./.github/actions/setup
         with:
-          python: "3.12"
+          python: ${{ matrix.python }}
       - name: Run linters
         # Temporarily disabled so I get CI up and running and I can fix the new
         # lint errors separately.
         run: |
-            nox -ts --python=3.12 --tags lint
+            nox -ts --python=${{ matrix.python }} --tags lint
   check:
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false
       matrix:
-        python: ["3.9", "3.10", "3.11", "3.12", "pypy3.9", "pypy3.10"]
+        python: ["3.9", "3.10", "3.11", "3.12", "pypy3.9", "pypy3.10", "3.13"]
     steps:
       - uses: actions/checkout@v4
       - uses: ./.github/actions/setup

noxfile.py

@@ -14,6 +14,7 @@
     "3.10",
     "3.11",
     "3.12",
+    "3.13",
     "pypy3.9",
     "pypy3.10",
 )
@@ -63,7 +64,7 @@ def check_imports(session: nox.Session) -> None:
     session.run("isort", *(session.posargs or DEFAULT_LINT_TARGETS), "--check")
 
 
-@nox.session(python=DEFAULT_PYTHON_VERSION, tags=["lint", "check"])
+@nox.session(python=ALL_PYTHON_VERSIONS, tags=["lint", "check"])
 def lint(session: nox.Session) -> None:
     """
     Run the ruff linter