Update conda-publish.yml

Author: WhiteSymmetry

.github/workflows/conda-publish.yml

@@ -14,7 +14,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup Miniconda for Python ${{ matrix.python-version }}
         uses: conda-incubator/setup-miniconda@v3