Bump mamba action

Author: jacobtomlinson

.github/workflows/ci-build.yaml

@@ -9,9 +9,8 @@ jobs:
         uses: actions/checkout@v2
 
       - name: Setup Conda Environment
-        uses: conda-incubator/setup-miniconda@v2
+        uses: conda-incubator/setup-miniconda@v3
         with:
-          miniconda-version: "latest"
           mamba-version: "*"
           environment-file: binder/environment.yml
           activate-environment: dask-tutorial