Add install of pybind11 to build pyopencl under Windows and install of scipy...

Add install of pybind11 to build pyopencl under Windows and install of scipy for test with old versions of python

.gitlab-ci.yml

@@ -53,6 +53,7 @@ debian10:
   variables:
     WITH_GL_TEST: "False"
   script:
+    - pip install pybind11  # Needed to build pyopencl under Windows
     - pip install --pre --find-links artifacts/ --only-binary silx silx[full]
     - python -c "import silx.test, sys; sys.exit(silx.test.run_tests());"
 
@@ -122,7 +123,7 @@ manylinux2010_test_cp37:
     WITH_QT_TEST: "False"
     WITH_GL_TEST: "False"
   script:
-    - pip install --pre --find-links artifacts/ --only-binary silx silx
+    - pip install --pre --find-links artifacts/ --only-binary silx,scipy silx scipy
     - python -c "import silx.test, sys; sys.exit(silx.test.run_tests());"