Move pcodec import back

Author: dstansby

.github/workflows/ci.yaml

@@ -50,11 +50,7 @@ jobs:
         run: |
           export DISABLE_NUMCODECS_AVX2=""
           # TODO: put back zfpy import when it supports numpy 2.0
-          python -m pip install -v -e .[test,test_extras,msgpack,crc32c]
-
-      - name: Install pcodec
-        if: matrix.python-version != '3.13'
-        run: python -m pip install -v ".[pcodec]"
+          python -m pip install -v -e .[test,test_extras,msgpack,crc32c,pcodec]
 
       - name: Install zarr-python
         # Since zarr v3 requires numpy >= 1.25, on Python 3.11 leave it out