Update test_mypy.yml

Author: Conengmo

.github/workflows/test_mypy.yml

@@ -10,7 +10,7 @@ jobs:
     - uses: actions/checkout@v3
 
     - name: Setup Micromamba env
-      uses:
+      uses: mamba-org/setup-micromamba@v1
       with:
         environment-name: TEST
         create-args: >-