remove pip install from pip section

Author: jGaboardi

ci/312-dev.yaml

@@ -16,5 +16,5 @@ dependencies:
     - --pre --index-url https://pypi.anaconda.org/scientific-python-nightly-wheels/simple --extra-index-url https://pypi.org/simple
     - numpy
     - scipy
-    - pip install git+https://github.com/pysal/libpysal.git@main
-    - pip install git+https://github.com/pysal/spreg.git@main
+    - git+https://github.com/pysal/libpysal.git@main
+    - git+https://github.com/pysal/spreg.git@main