SNOW-UD: Add doctest step, default Python to 3.13

- Add 'Run doctest' step using py${PYTHON_VERSION}-doctest-notudf-ci,
  matching the pattern from daily_precommit.yml.
- Change default python-version input from 3.10 to 3.13 (latest
  Snowflake-supported Python).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: sfc-gh-fpawlowski

.github/workflows/ud-inline-tests.yml

@@ -13,7 +13,7 @@ on:
       python-version:
         description: 'Python version'
         required: false
-        default: '3.10'
+        default: '3.13'
         type: choice
         options:
           - '3.10'
@@ -34,13 +34,13 @@ permissions:
   contents: read
 
 env:
-  PYTHON_VERSION: ${{ inputs.python-version || '3.10' }}
+  PYTHON_VERSION: ${{ inputs.python-version || '3.13' }}
   CLOUD_PROVIDER: ${{ inputs.cloud-provider || 'aws' }}
   UD_BRANCH: ${{ inputs.ud-branch || 'snowpark-compatibility' }}
 
 jobs:
   test:
-    name: UD Test py${{ inputs.python-version || '3.10' }}-${{ inputs.cloud-provider || 'aws' }} (${{ inputs.ud-branch || 'snowpark-compatibility' }})
+    name: UD Test py${{ inputs.python-version || '3.13' }}-${{ inputs.cloud-provider || 'aws' }} (${{ inputs.ud-branch || 'snowpark-compatibility' }})
     runs-on: ubuntu-latest-64-cores
 
     steps:
@@ -91,6 +91,15 @@ jobs:
           PYTEST_ADDOPTS: --color=yes --tb=short
           TOX_PARALLEL_NO_SPINNER: 1
 
+      - name: Run doctest
+        run: python -m tox -e "py${PYTHON_VERSION}-doctest-notudf-ci"
+        env:
+          cloud_provider: ${{ env.CLOUD_PROVIDER }}
+          ud_connector_path: "git+https://github.com/snowflakedb/universal-driver@${{ env.UD_BRANCH }}#subdirectory=python"
+          GH_TOKEN: ${{ secrets.SNOWFLAKE_GITHUB_TOKEN }}
+          PYTEST_ADDOPTS: --color=yes --tb=short
+          TOX_PARALLEL_NO_SPINNER: 1
+
       - name: Run datasource tests
         run: python -m tox -e datasource
         env: