Update libgit2sharp.yml

Author: lytico

.github/workflows/libgit2sharp.yml

@@ -31,7 +31,8 @@ jobs:
     - name: Create Release
       id: create_release
       uses: actions/create-release@v1
-      env:
+      env: |
+          SHORT_SHA: ${GITHUB_REF##*/}
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       with:
           tag_name: ${{ github.ref }}
@@ -41,8 +42,7 @@ jobs:
     - name: Upload Release Asset
       id: upload-release-asset 
       uses: actions/upload-release-asset@v1
-      env: |
-          SHORT_SHA: ${GITHUB_REF##*/}
+      env: 
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       with:
           upload_url: ${{ steps.create_release.outputs.upload_url }} # This pulls from the CREATE RELEASE step above, referencing it's ID to get its outputs object, which include a `upload_url`. See this blog post for more info: https://jasonet.co/posts/new-features-of-github-actions/#passing-data-to-future-steps