Try altering CI so pybind11 extensions build OK

ianthomas23 · ianthomas23 · commit f8226d8df23e · 2022-09-02T11:30:00.000+01:00
diff --git a/.circleci/config.yml b/.circleci/config.yml
@@ -102,6 +102,7 @@ commands:
             python -m pip install --user \
                 numpy<< parameters.numpy_version >> codecov coverage \
                 -r requirements/doc/doc-requirements.txt
+            python -m pip install pybind11
 
   mpl-install:
     steps:
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
@@ -125,6 +125,7 @@ stages:
 
       - bash: |
           python -m pip install --upgrade pip
+          python -m pip install pybind11
           python -m pip install -r requirements/testing/all.txt -r requirements/testing/extra.txt ||
             [[ "$PYTHON_VERSION" = 'Pre' ]]
         displayName: 'Install dependencies with pip'
