COMP: Remove CI installation of zarr==3.0.0b2

zarr-python 3.0.0 is now released.

This version contains some bugs, which we are running into.

We will get zarr-python 2 on older Python and zarr-python 3 with newer
(3.11+).

Author: thewtex

.github/workflows/test.yml

@@ -32,13 +32,6 @@ jobs:
           python -m pip install --upgrade pip
           python -m pip install -e ".[tensorstore]"
 
-      - name: Install Zarr Python 3 for OME-Zarr 0.5
-        if:
-          ${{ matrix.python-version != '3.9' && matrix.python-version != '3.10'
-          }}
-        run: |
-          python -m pip install --upgrade --pre "zarr==3.0.0b2"
-
       - name: Test with pytest
         run: |
           pytest --junitxml=junit/test-results.xml