Remove last character only from changelog message

.github/workflows/Build.yml

@@ -29,7 +29,7 @@ jobs:
         shell: bash
         run: |
           latest_tag=$(git describe --tags --abbrev=0)
-          { grep --color=auto -Pzo "(?<=## $latest_tag)((?!\n## )[\s\S])*" ./CHANGELOG.md || true; } | sed 's/.$//' > ./NEW_CHANGELOG.md
+          { grep --color=auto -Pzo "(?<=## $latest_tag)((?!\n## )[\s\S])*" ./CHANGELOG.md || true; } | sed '$ s/.$//' > ./NEW_CHANGELOG.md
 
       - name: Upload Changelog
         uses: actions/upload-artifact@v4