Rename CI workflow 'ref' inputs to 'target'

.github/workflows/build.yml

@@ -6,7 +6,7 @@ on:
   workflow_dispatch:
   workflow_call:
     inputs:
-      ref:
+      target:
         required: true
         type: string
 
@@ -20,7 +20,7 @@ jobs:
       - name: Checkout branch
         uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v3.5.2
         with:
-          ref: ${{ inputs.ref }}
+          ref: ${{ inputs.target }}
           submodules: recursive
 
       - name: Setup .NET