Return void from McpStatelessSyncServer#closeGracefully instead of Mono#1019

chemicL merged 3 commits into

mainmodelcontextprotocol/java-sdk:mainfrom

fix/stateless-sync-server-close-gracefully-return-typemodelcontextprotocol/java-sdk:fix/stateless-sync-server-close-gracefully-return-typeCopy head branch name to clipboard