Updated Release Notes for 1.300058.0 (#1780)

Author: movence

RELEASE_NOTES

@@ -1,3 +1,13 @@
+========================================================================
+Amazon CloudWatch Agent 1.300058.0 (2025-07-17)
+========================================================================
+Enhancements:
+[ContainerInsights] Added ability to set CollectionRole via environment variable
+[ContainerInsights] Increased data cache TTL and cleanup interval to support metric collection intervals greater than 300s
+[Logs] Set default concurrency for multi-threaded log processing
+[Logs] Improved log state file handling for Windows event logs
+[Logs] Increased maximum log event size to 1MB and improved handling of large log lines
+
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 Amazon CloudWatch Agent 1.300057.0 (2025-06-16)
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