Fix other micromamba setup

Author: mcbarton

.github/workflows/main.yml

@@ -41,7 +41,7 @@ jobs:
           fetch-depth: 0
 
       - name: install mamba
-        uses: mamba-org/provision-with-micromamba@main
+        uses: mamba-org/setup-micromamba@main
         with:
           environment-file: environment-dev.yml
           environment-name: xeus-cpp