Use setup-micromamba 2.0.4

Signed-off-by: Julien Jerphanion <[email protected]>

Author: jjerphan

.github/workflows/build_with_conda.yml

@@ -190,7 +190,7 @@ jobs:
         id: cpu-cores
 
       - name: Install Conda environment from environment-dev.yml
-        uses: mamba-org/[email protected].0
+        uses: mamba-org/[email protected].4
         with:
           environment-file: environment-dev.yml
           init-shell: bash cmd.exe