#7962: upgrade groovy version to 2.5.6 (#7995)
#7962: upgrade groovy version to 2.5.6 (#7995)


twosigma/beakerx,twosigma/beaker-notebook,twosigma/beaker-notebook,twosigma/beakerx,twosigma/beaker-notebook,twosigma/beakerx,twosigma/beaker-notebook,twosigma/beakerx,twosigma/beakerx,twosigma/beakerx,twosigma/beaker-notebook