Update scripts-testing.yml

.github/workflows/scripts-testing.yml

@@ -35,9 +35,8 @@ jobs:
         shell: bash
         run: |
           # Testing scripts...
-          find /usr/bin -samefile /usr/bin/sh || echo $?
           printf '%s\n' '---'
-          find /bin -samefile /bin/sh || echo $?
+          diff -s -- "$(command -v 'sh' || :)" "$(command -v 'bash')"; echo $?
           printf '%s\n' '---'
           # shellcheck disable=SC2016 # Intended: Expressions don't expand in single quotes
           readonly current_os='${{ matrix.os }}'; readonly workspace_dir='${{ github.workspace }}'