[#82] Set short sha for release

Author: juampynr

.github/workflows/create-release.yml

@@ -17,9 +17,12 @@ jobs:
           export PATH=$PATH:/usr/local/go/bin
           go version
           go build
+      - name: Set short sha
+        id: vars
+        run: echo "::set-output name=sha_short::$(git rev-parse --short HEAD)"
       - uses: marvinpinto/action-automatic-releases@latest
         with:
-          automatic_release_tag: "${{ github.sha }}"
+          automatic_release_tag: ${{ steps.vars.outputs.sha_short }}
           repo_token: "${{ secrets.GITHUB_TOKEN }}"
           prerelease: false
           files: |