spec: Automatically tag with branch name when pact is published
spec: Automatically tag with branch name when pact is published

Change-Id: Ia53a6f82d2bb62ddf8938170d19cb3dbb3282170
Reviewed-on: https://gerrit.instructure.com/155297
Tested-by: Jenkins
Reviewed-by: Deepeeca Soundarrajan <5bcd4b623f00b7fc2942cd1c65c245b30a48a61f@instructure.com>
Reviewed-by: Tucker McKnight <4b51b98c1d84aa97854d216bd061ce5d3eda8a28@instructure.com>
Product-Review: Anju Reddy <851202533fb1f0b615e4547ba226c76996d060dd@instructure.com>
QA-Review: Anju Reddy <851202533fb1f0b615e4547ba226c76996d060dd@instructure.com>

djbender/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,djbender/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,djbender/canvas-lms,instructure/canvas-lms,djbender/canvas-lms