Add test of macOS-arm64 binaries in the Mithril Client multi-platform test manual workflow

Author: dlachaume

.github/workflows/test-client.yml

@@ -46,7 +46,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ ubuntu-22.04, macos-12, windows-latest ]
+        os: [ ubuntu-22.04, macos-12, macos-14, windows-latest ]
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout sources