Fix invalid output

Author: mikogs

.github/workflows/test-replace-string.yml

@@ -52,7 +52,7 @@ jobs:
       - name: Check replaced string
         shell: bash
         run: |
-          if [[ '${{ steps.replace-string.outputs.replaced-string }}' != 'Apricot Redberry' ]]; then
+          if [[ '${{ steps.replace-from-file.outputs.replaced-string }}' != 'Apricot Redberry' ]]; then
             echo '!!! Action replace-string failed to replace string from a file'
             exit 1
           fi