Fix non-standard formatting of GitHub Actions context references

The established convention is to pad the GitHub Actions context identifier in references.

In this workflow code, the right hand padding was missing.

Author: per1234

Diff for: .github/workflows/publish-go-nightly-task.yml

@@ -193,7 +193,7 @@ jobs:
           path: ${{ env.DIST_DIR }}
 
       - name: Create checksum file
-        working-directory: ${{ env.DIST_DIR}}
+        working-directory: ${{ env.DIST_DIR }}
         run: |
           TAG="nightly-$(date -u +"%Y%m%d")"
           sha256sum ${{ env.PROJECT_NAME }}_${TAG}* > ${TAG}-checksums.txt

Diff for: .github/workflows/release-go-task.yml

@@ -200,7 +200,7 @@ jobs:
           path: ${{ env.DIST_DIR }}
 
       - name: Create checksum file
-        working-directory: ${{ env.DIST_DIR}}
+        working-directory: ${{ env.DIST_DIR }}
         run: |
           TAG="${GITHUB_REF/refs\/tags\//}"
           sha256sum ${{ env.PROJECT_NAME }}_${TAG}* > ${TAG}-checksums.txt