[AzureMonitorExporter] Update changelog for release 1.5.0 (#53941)

* Update changelog

* remove unused section

Author: rajkumar-rangaraj

sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/CHANGELOG.md

@@ -1,6 +1,6 @@
 # Release History
 
-## 1.5.0-beta.2 (Unreleased)
+## 1.5.0 (2025-11-14)
 
 ### Features Added
 
@@ -16,12 +16,6 @@
   ([#53910](https://github.com/Azure/azure-sdk-for-net/pull/53910))
   - OpenTelemetry 1.14.0
 
-### Breaking Changes
-
-### Bugs Fixed
-
-### Other Changes
-
 ## 1.5.0-beta.1 (2025-10-16)
 
 ### Features Added

sdk/monitor/Azure.Monitor.OpenTelemetry.Exporter/src/Azure.Monitor.OpenTelemetry.Exporter.csproj

@@ -2,7 +2,7 @@
   <PropertyGroup>
     <Description>An OpenTelemetry .NET exporter that exports to Azure Monitor</Description>
     <AssemblyTitle>AzureMonitor OpenTelemetry Exporter</AssemblyTitle>
-    <Version>1.5.0-beta.2</Version>
+    <Version>1.5.0</Version>
     <!--The ApiCompatVersion is managed automatically and should not generally be modified manually.-->
     <ApiCompatVersion>1.4.0</ApiCompatVersion>
     <PackageTags>Azure Monitor OpenTelemetry Exporter ApplicationInsights</PackageTags>