Fix build-test workflow: use matrix.name in if condition

Author: andresarbelaez

.github/workflows/build-test.yml

@@ -24,18 +24,15 @@ jobs:
           - platform: 'macos-latest'
             target: 'x86_64-apple-darwin'
             name: 'macos-x64'
-            condition: ${{ github.event.inputs.platform == 'macos-x64' || github.event.inputs.platform == 'all' }}
           - platform: 'macos-latest'
             target: 'aarch64-apple-darwin'
             name: 'macos-arm64'
-            condition: ${{ github.event.inputs.platform == 'macos-arm64' || github.event.inputs.platform == 'all' }}
           - platform: 'windows-latest'
             target: 'x86_64-pc-windows-msvc'
             name: 'windows-x64'
-            condition: ${{ github.event.inputs.platform == 'windows-x64' || github.event.inputs.platform == 'all' }}
 
     runs-on: ${{ matrix.platform }}
-    if: ${{ matrix.condition }}
+    if: github.event.inputs.platform == matrix.name || github.event.inputs.platform == 'all'
 
     steps:
       - name: Checkout repository