message: Update CosmosDB codeowners
  To get the users notified whenever a PR is created in CosmosDB
diff: /specification/containerinstance/ @novinc
  /specification/containerregistry/ @djyou
  /specification/containerservice/ @yangl900
  -/specification/cosmos-db/ @dmakwana
  +/specification/cosmos-db/ @dmakwana @MehaKaushik @wmengmsft @shurd
  /specification/customer-insights/ @tjlvtao
  /specification/datafactory/ @zhangyd2015
  /specification/datalake-analytics/ @ro-joowan
  