Delete remove defaults channel step from test_windows job

Author: oleksandr-pavlyk

.github/workflows/conda-package.yml

@@ -246,6 +246,11 @@ jobs:
           miniconda-version: 'latest'
           activate-environment: ${{ env.TEST_ENV_NAME }}
           python-version: ${{ matrix.python }}
+
+      - name: Install conda-index
+        run: |
+          conda install -n base conda-index
+
       - name: Create conda channel with the artifact bit
         shell: cmd /C CALL {0}
         run: |