Test with latest dependencies

Author: dstansby

.github/workflows/latest-deps.yml

@@ -0,0 +1,31 @@
+# This workflow simulates a fresh environment where the only install
+# command is a user pip installing zarr
+name: Latest dependencies
+
+on:
+  push:
+    branches: [ support/v2 ]
+  pull_request:
+    branches: [ support/v2 ]
+
+jobs:
+  minimum_build:
+
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - name: Setup Miniconda
+      uses: conda-incubator/[email protected]
+      with:
+          auto-update-conda: true
+          python-version: "3.12"
+    - name: Tests
+      shell: bash -el {0}
+      env:
+        ZARR_V3_EXPERIMENTAL_API: 1
+        ZARR_V3_SHARDING: 1
+      run: |
+        python -m pip install pytest pytest-cov
+        python -m pip install .
+
+        pytest -svx --timeout=300