[CI] restore checkout step

CSY-ModelCloud · CSY-ModelCloud · commit 2ff0e9fbd107 · 2026-04-15T19:09:06.000+08:00
diff --git a/.github/workflows/compatibility.yml b/.github/workflows/compatibility.yml
@@ -15,6 +15,7 @@ jobs:
     outputs:
       versions: ${{ steps.parser.outputs.versions || '[]' }}
     steps:
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v6
         with:
           python-version: "3.14"
diff --git a/.github/workflows/unit_tests.yml b/.github/workflows/unit_tests.yml
@@ -193,6 +193,7 @@ jobs:
     outputs:
       versions: ${{ steps.parser.outputs.versions || '[]' }}
     steps:
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v6
         with:
           python-version: "3.14"
