Disable it on all platforms

Author: stefankiesz

.github/workflows/samples.yml

@@ -176,7 +176,7 @@ jobs:
           & $exePath demo-stream-producer-cpp-${{ matrix.runner.id }}-ci-${{ matrix.sample.name }} ${{ matrix.sample.args }} ${{ matrix.sample.metadata_args }}
 
       - name: Verify MKV dump exists (Mac & Linux)
-        if: runner.os == 'Linux' || runner.os == 'macOS'
+        if: (runner.os == 'Linux' || runner.os == 'macOS') && matrix.sample.name != 'kvssink_intermittent_sample'
         working-directory: ./build/debug_output
         run: |
           shopt -s nullglob  # Ensure globbing works correctly and avoids errors when no files are found
@@ -195,7 +195,7 @@ jobs:
         shell: bash
 
       - name: Verify MKV dump exists (Windows)
-        if: runner.os == 'Windows'
+        if: runner.os == 'Windows' && matrix.sample.name != 'kvssink_intermittent_sample'
         working-directory: D:\producer\build
         run: |
           $env:Path += ";C:\Program Files\MKVToolNix"