install zarrita in CI

Author: brokkoli71

.github/workflows/ci.yml

@@ -11,22 +11,33 @@ jobs:
   build:
     strategy:
       matrix:
-        os: [ ubuntu, windows, macos ]
+        os: [ ubuntu-latest, windows-latest, macos-latest ]
       fail-fast: false
-    runs-on: ${{ matrix.os }}-latest
+    runs-on: ${{ matrix.os }}
     defaults:
       run:
         shell: bash
 
     steps:
       - uses: actions/checkout@v3
+
       - name: Set up JDK
         uses: actions/setup-java@v3
         with:
           java-version: '22'
           distribution: 'temurin'
           cache: maven
 
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.x'
+
+      - name: Install zarrita
+        run: |
+          python -m pip install --upgrade pip
+          pip install zarrita
+
       - name: Download blosc jar
         run: |
           mkdir -p ../blosc-java/target