Update chartlets-ci.yml

Author: b-yogesh

.github/workflows/chartlets-ci.yml

@@ -10,16 +10,7 @@ jobs:
         - name: Set up Micromamba
           uses: mamba-org/setup-micromamba@v1
           with:
-            micromamba-version: '1.4.8-0'
             environment-file: chartlets.py/environment.yml
-            init-shell: >-
-              bash
-            cache-environment: false
-            post-cleanup: 'all'
-        - name: Install dependencies
-          run: |
-            cd chartlets.py
-            mamba env install
         - name: Run tests
           run: |
             cd chartlets.py