Update collector-exporter-azure-monitor.yml author (#4420)

Author: cijothomas

data/registry/collector-exporter-azure-monitor.yml

@@ -9,7 +9,7 @@ tags:
 license: Apache 2.0
 description: The Azure Monitor Exporter for the OpenTelemetry Collector.
 authors:
-  - name: Microsoft
+  - name: OpenTelemetry Authors
 urls:
   repo: https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/exporter/azuremonitorexporter
 createdAt: 2020-06-06