Explicit micromamba init

Author: adam-urbanczyk

.github/workflows/build-job.yml

@@ -47,17 +47,15 @@ jobs:
           sudo ln -s /opt/MacOSX11.3.sdk/System/Library/Frameworks/OpenGL.framework/Headers /usr/local/include/OpenGL
 
       # --- Setup Environment ---
-      - uses: mamba-org/setup-micromamba@v3
-        with:
-          # REMOVE: environment-file: environment.devenv.yml
-          environment-name: placeholder
-          # cache-environment: true
-          # Create a minimal environment with mamba-devenv
-          init-shell: bash
-          create-args: >-
-            python=3.12
-            conda-devenv
-            mamba
+
+      - name: install micromamba
+        run: "${SHELL}" <(curl -L micro.mamba.pm/install.sh)
+
+      - name: install conda-devenv
+        run: micromamba install mamba conda-devenv
+
+      - name: init shell
+        run: micromamba shell init
 
       - name: Prepare conda environment (mamba-devenv)
         shell: bash -l {0}