bots: Suppress DeprecationWarning when using scikit-learn
bots: Suppress DeprecationWarning when using scikit-learn

When using scikit-learn we don't want to constantly be nagged
by deprecation warnings. Fedora will package a new version of
scikit-learn that fixes these warnings.

Should fix:

    /usr/lib64/python3.6/site-packages/sklearn/externals/six.py:7: DeprecationWarning: the imp module is deprecated in favour of importlib; see the module's documentation for alternative uses
      import imp

Closes #9118
moraleslazaro/cockpit,garrett/cockpit,deryni/cockpit,mareklibra/cockpit,deryni/cockpit,deryni/cockpit,cockpituous/cockpit,cockpituous/cockpit,cockpit-project/cockpit,cockpituous/cockpit,mareklibra/cockpit,stefwalter/cockpit,moraleslazaro/cockpit,mareklibra/cockpit,andreasn/cockpit,stefwalter/cockpit,mvollmer/cockpit,mareklibra/cockpit,moraleslazaro/cockpit,SotolitoLabs/cockpit,stefwalter/cockpit,stefwalter/cockpit,deryni/cockpit,cockpituous/cockpit,martinpitt/cockpit,cockpituous/cockpit,andreasn/cockpit,mvollmer/cockpit,cockpit-project/cockpit,moraleslazaro/cockpit,deryni/cockpit,cockpit-project/cockpit,mvollmer/cockpit,martinpitt/cockpit,SotolitoLabs/cockpit,garrett/cockpit,martinpitt/cockpit,stefwalter/cockpit,mvollmer/cockpit,deryni/cockpit,andreasn/cockpit,garrett/cockpit,moraleslazaro/cockpit,garrett/cockpit,deryni/cockpit,SotolitoLabs/cockpit,mareklibra/cockpit,SotolitoLabs/cockpit,mareklibra/cockpit,andreasn/cockpit,martinpitt/cockpit,stefwalter/cockpit,cockpit-project/cockpit,cockpit-project/cockpit,moraleslazaro/cockpit,andreasn/cockpit,garrett/cockpit,mareklibra/cockpit,cockpituous/cockpit,andreasn/cockpit,martinpitt/cockpit,SotolitoLabs/cockpit,stefwalter/cockpit,moraleslazaro/cockpit,SotolitoLabs/cockpit,SotolitoLabs/cockpit,mvollmer/cockpit,andreasn/cockpit