[ReleasePR peering] Peering new api version 2021-01-01 (#1533)

Create to sync Azure/azure-rest-api-specs#12855
[ReCreate this PR](https://github.com/azure-resource-manager-schemas/compare/master...AzureSDKAutomation:sdkAuto/peering?expand=1)

Author: msftbot[bot]

schemas/2019-08-01-preview/Microsoft.Peering.json

@@ -787,4 +787,4 @@
       "description": "The sub resource."
     }
   }
-}
+}

schemas/2019-09-01-preview/Microsoft.Peering.json

@@ -730,4 +730,4 @@
       "description": "The sub resource."
     }
   }
-}
+}

schemas/2020-01-01-preview/Microsoft.Peering.json

@@ -947,4 +947,4 @@
       "description": "The sub resource."
     }
   }
-}
+}

schemas/2020-04-01/Microsoft.Peering.json

@@ -948,4 +948,4 @@
       "description": "The sub resource."
     }
   }
-}
+}

schemas/2020-10-01/Microsoft.Peering.json

@@ -948,4 +948,4 @@
       "description": "The sub resource."
     }
   }
-}
+}