fixed error

.github/workflows/reusable.yml

@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Echo greeting
-        run: echo "Hello ${{ github.event.inputs.who-to-greet }}"
+        run: echo "Hello ${{ inputs.who-to-greet }}"
     - name: Set current time
         id: time
         run: |