Update Speech SDK release metadata for 1.50.0#2649

HuapingLiu wants to merge 1 commit into

MicrosoftDocs:mainMicrosoftDocs/azure-docs-sdk-java:mainfrom

HuapingLiu:speech-sdk-1.50.0-java-metadataHuapingLiu/azure-docs-sdk-java:speech-sdk-1.50.0-java-metadataCopy head branch name to clipboard