enable recorded tests for audio

Author: m-redding

.github/workflows/live-test.yml

@@ -35,7 +35,7 @@ jobs:
       - name: Run recorded tests
         run: dotnet test ./tests/OpenAI.Tests.csproj
           --configuration Release
-          --filter="(TestCategory=Chat|TestCategory=Embeddings|TestCategory=Responses)&TestCategory!=MPFD"
+          --filter="(TestCategory=Chat|TestCategory=Embeddings|TestCategory=Responses|TestCategory=Audio)&TestCategory!=MPFD"
           --logger "trx;LogFilePrefix=live"
           --results-directory ${{ github.workspace }}/artifacts/test-results
           ${{ env.version_suffix_args }}