Remove -e in docs.yml

Author: bobleesj

.github/workflows/docs.yml

@@ -36,7 +36,7 @@ jobs:
           conda install --file requirements/run.txt
           conda install --file requirements/docs.txt
           python -m pip install -r requirements/pip.txt
-          python -m pip install -e . --no-deps
+          python -m pip install . --no-deps
 
       - name: build documents
         run: make -C doc html