CI: moving devdeps installs to commans

Author: bsipocz

tox.ini

@@ -15,16 +15,16 @@ deps =
     -rsite/requirements.txt
     -rrequirements.txt
 
-    devdeps: pip install -U --pre --only-binary :all: -i https://pypi.anaconda.org/scipy-wheels-nightly/simple numpy
-    devdeps: pip install -U --pre --only-binary :all: -i https://pypi.anaconda.org/scipy-wheels-nightly/simple scipy
-    devdeps: pip install -U --pre --only-binary :all: -i https://pypi.anaconda.org/scipy-wheels-nightly/simple matplotlib
-
     # TODO: add the oldest supported versions of all the dependencies here
     # oldestdeps: numpy==1.18
     # oldestdeps: matplotlib==3.1.2
     # oldestdeps: scipy==1.4
 
 commands =
+    devdeps: pip install -U --pre --only-binary :all: -i https://pypi.anaconda.org/scipy-wheels-nightly/simple numpy
+    devdeps: pip install -U --pre --only-binary :all: -i https://pypi.anaconda.org/scipy-wheels-nightly/simple scipy
+    devdeps: pip install -U --pre --only-binary :all: -i https://pypi.anaconda.org/scipy-wheels-nightly/simple matplotlib
+
     pip freeze
 
     # Ignore testing the tutorials listed in ignore_testing file