simplify build deps

.github/workflows/build-docs.yml

@@ -24,10 +24,7 @@ jobs:
       - name: Install Python dependencies
         run: |
           python -m pip install --upgrade pip setuptools
-          DEPENDENCIES=$(python -c 'from setuptools.config.setupcfg import read_configuration as c; a = c("setup.cfg"); print(" ".join(a["options"]["install_requires"][1:]))')
-          pip install ${DEPENDENCIES}
-          DOCDEPENDENCIES=$(python -c 'with open("docs/requirements.txt") as a: available = list(a); print(" ".join(map(lambda x : x.strip(), filter(lambda x : not x.startswith("#"), available))))')
-          pip install ${DOCDEPENDENCIES}
+          pip install cmake pybind11 numpy tox assorthead mattress>=0.1.4
 
       - name: Build docs
         run: |