Add tag fetching

Author: Sparks29032

Diff for: .github/workflows/main.yml

@@ -21,6 +21,8 @@ jobs:
         with:
           repository: diffpy/diffpy.utils
           path: .
+      - name: get tags
+        run: git fetch --tags origin
 
       - name: initialize miniconda
         # this uses a marketplace action that sets up miniconda in a way that makes