Update RELEASE_NOTES (#1514)

Author: okankoAMZ

RELEASE_NOTES

@@ -1,3 +1,19 @@
+========================================================================
+Amazon CloudWatch Agent 1.300052.0 (2024-01-21)
+========================================================================
+
+Bug Fixes:
+* Fix concurrent map read/write error causing agent crashes in entity store
+* Fix disk usage metrics collection on macOS
+* Fix service startup failures on Windows by updating network depenencies
+
+Enhancements:
+* [Logs] Improve performance with multi-threaded log pusher implementation 
+* [Related Telemetry] Add case insensitive  metadata support for EC2 tags
+* [Related Telemetry] Reduce number of entities in explore experience by retrieving instance tags simultaneously
+* [Related Telemetry] Add fallback to use application signals for entity population when IMDS tags are not enabled
+* [ApplicationSignals] Add support for .NET runtime metrics exporting
+
 ========================================================================
 Amazon CloudWatch Agent 1.300051.0 (2024-12-11)
 ========================================================================