Merge pull request #64 from zssherman/mamba_2

CI: Update to use mamba 2.

.github/workflows/ci.yaml

@@ -1,6 +1,6 @@
 name: CI
 env:
-  micromamba_version: 1.3
+  micromamba_version: 2.0.0
 
 on:
   push:
@@ -36,16 +36,19 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.9', '3.10', '3.11']
+        python-version: ['3.9', '3.10', '3.11', '3.12']
     steps:
       - uses: actions/checkout@v4
-      - uses: mamba-org/setup-micromamba@v1
+      - uses: mamba-org/setup-micromamba@v2
         with:
           environment-name: open-radar-data-dev
           environment-file: ci/environment.yml
           create-args: >-
             python=${{matrix.python-version}}
             conda
+          init-shell: >-
+            bash
+          post-cleanup: 'all'
       - name: Fetch all history for all tags and branches
         run: |
            git fetch --prune --unshallow