Update actions

Author: martinRenou

.github/workflows/main.yml

@@ -24,10 +24,10 @@ jobs:
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
 
     - name: Install Conda environment with Micromamba
-      uses: mamba-org/setup-micromamba@v1
+      uses: mamba-org/setup-micromamba@v2
       with:
         environment-name: ci
         channels: conda-forge