update release yml (#8364)

only do the step that tags and adds release notes if its langchain

.github/workflows/_release.yml

@@ -37,6 +37,7 @@ jobs:
           echo version=$(poetry version --short) >> $GITHUB_OUTPUT
       - name: Create Release
         uses: ncipollo/release-action@v1
+        if: ${{ inputs.working-directory == 'langchain' }}
         with:
           artifacts: "dist/*"
           token: ${{ secrets.GITHUB_TOKEN }}