ci: install PyAutoArray[optional] in the Python Version Matrix (#144)

The matrix installed bare -e ./PyAutoArray, so nufftax/pynufft (PyAutoArray's
[optional] extra) were absent and all interferometer/NUFFT tests failed with
ModuleNotFoundError on every Python version. Install PyAutoArray[optional] to
match PyAutoHeart's canonical lib-tests recipe. On 3.12/3.13 this makes the
interferometer tests pass; on 3.9-3.11 (where nufftax is 3.12+ only) they skip
via the paired PyAutoArray conftest hook.

Co-authored-by: Jammy2211 <JNightingale2211@gmail.com>
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>

Author: 3 people

.github/workflows/python_matrix.yml

@@ -55,7 +55,7 @@ jobs:
           # the local autolens — which never matches because PyPI is stale.
           pip install \
             -e ./PyAutoConf \
-            -e ./PyAutoArray \
+            -e "./PyAutoArray[optional]" \
             -e ./PyAutoFit \
             -e ./PyAutoGalaxy \
             -e "./PyAutoLens[optional]"
@@ -109,7 +109,7 @@ jobs:
           python -m pip install --upgrade pip wheel
           pip install \
             -e ./PyAutoConf \
-            -e ./PyAutoArray \
+            -e "./PyAutoArray[optional]" \
             -e ./PyAutoFit \
             -e ./PyAutoGalaxy \
             -e "./PyAutoLens[optional]"