Run stubtest on py313 in CI (#11987)

.github/workflows/daily.yml

@@ -55,6 +55,24 @@ jobs:
       - name: Run stubtest
         run: python tests/stubtest_stdlib.py
 
+  stubtest-stdlib-py313:
+    name: Check py313-linux stdlib with stubtest
+    # TODO: get it passing on all platforms and add it to the main matrix
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - uses: actions/setup-python@v5
+      with:
+        python-version: 3.13
+        cache: pip
+        cache-dependency-path: requirements-tests.txt
+        allow-prereleases: true
+        check-latest: true
+    - name: Install dependencies
+      run: pip install -r requirements-tests.txt
+    - name: Run stubtest
+      run: python tests/stubtest_stdlib.py
+
   stubtest-third-party:
     name: Check third party stubs with stubtest
     if: ${{ github.repository == 'python/typeshed' || github.event_name == 'workflow_dispatch' }}

.github/workflows/stubtest_stdlib.yml

@@ -50,3 +50,21 @@ jobs:
         run: pip install -r requirements-tests.txt
       - name: Run stubtest
         run: python tests/stubtest_stdlib.py
+
+  stubtest-stdlib-py313:
+    name: Check py313-linux stdlib with stubtest
+    # TODO: get it passing on all platforms and add it to the main matrix
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - uses: actions/setup-python@v5
+      with:
+        python-version: 3.13
+        cache: pip
+        cache-dependency-path: requirements-tests.txt
+        allow-prereleases: true
+        check-latest: true
+    - name: Install dependencies
+      run: pip install -r requirements-tests.txt
+    - name: Run stubtest
+      run: python tests/stubtest_stdlib.py