Update unit test workflow to use 'windows-2025' and remove --platform flag from FFmpeg Docker create command

Author: Enrico Martelli

.github/workflows/unit-test.yml

@@ -18,15 +18,15 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ ubuntu-latest, windows-latest ]
+        os: [ ubuntu-latest, windows-2025 ]
     steps:
       - name: Checkout code changes
         uses: actions/checkout@v4
 
       - name: Setup FFmpeg
         shell: bash
         run: |
-          docker create --name ffmpeg --platform linux mwader/static-ffmpeg:7.0.2
+          docker create --name ffmpeg mwader/static-ffmpeg:7.0.2
           docker cp ffmpeg:/ffmpeg ffmpeg
           docker cp ffmpeg:/ffprobe ffprobe
           docker rm -f ffmpeg