fix conda package workflow

Author: ndgrigorian

.github/workflows/conda-package.yml

@@ -165,8 +165,8 @@ jobs:
       - name: Add conda to system path
         run: echo "$CONDA/bin" >> "$GITHUB_PATH"
 
-      - name: Install conda-build
-        run: conda install conda-build
+      - name: Install conda-index
+        run: conda install conda-index
 
       - name: Create conda channel
         run: |