suppress warnings temporarily in CI part 3, ci yaml work

.github/workflows/ci_examples.yaml

@@ -43,12 +43,30 @@ jobs:
           echo "SETUPTOOLS_ENABLE_FEATURES=legacy-editable" >> $GITHUB_ENV
 
       - name: Setup micromamba
-        uses: mamba-org/setup-micromamba@v1
+        uses: mamba-org/setup-micromamba@v1.9.0
         with:
+          micromamba-version: '1.5.10-0'
           environment-file: environment.yml
           cache-environment: true
           cache-downloads: true
 
+      - name: Checkout MODFLOW 6
+        uses: actions/checkout@v4
+        with:
+          repository: ${{ env.MF6_REMOTE }}
+          ref: ${{ env.MF6_REF }}
+          path: modflow6
+
+      - name: Update flopy MODFLOW 6 classes
+        working-directory: modflow6/autotest
+        run: |
+          python update_flopy.py
+
+      - name: Install mf6 nightly build binaries
+        uses: modflowpy/install-modflow-action@v1
+        with:
+          repo: modflow6-nightly-build
+
       - name: Install error reporter
         run: |
           pip install pytest-github-actions-annotate-failures