chore: bump OpenTelemetry to 1.15.3 for CVE fixes

addresses CVE-2026-40894, CVE-2026-40891, CVE-2026-40182

Co-Authored-By: Claude (claude-opus-4-7) <noreply@anthropic.com>

Author: Jonny-Freemarket

Directory.Packages.props

@@ -102,18 +102,18 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageVersion>
     <PackageVersion Include="NUnit3TestAdapter" Version="6.2.0" />
-    <PackageVersion Include="OpenTelemetry" Version="1.15.2" />
+    <PackageVersion Include="OpenTelemetry" Version="1.15.3" />
     <PackageVersion Include="OpenTelemetry.Instrumentation.Process" Version="1.14.0-beta.2" />
-    <PackageVersion Include="OpenTelemetry.Api.ProviderBuilderExtensions" Version="1.15.2" />
-    <PackageVersion Include="OpenTelemetry.Exporter.Console" Version="1.15.2" />
-    <PackageVersion Include="OpenTelemetry.Exporter.InMemory" Version="1.15.2" />
+    <PackageVersion Include="OpenTelemetry.Api.ProviderBuilderExtensions" Version="1.15.3" />
+    <PackageVersion Include="OpenTelemetry.Exporter.Console" Version="1.15.3" />
+    <PackageVersion Include="OpenTelemetry.Exporter.InMemory" Version="1.15.3" />
     <PackageVersion Include="OpenTelemetry.Exporter.Jaeger" Version="1.5.1" />
-    <PackageVersion Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.15.2" />
+    <PackageVersion Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.15.3" />
     <PackageVersion Include="OpenTelemetry.Exporter.Prometheus.AspNetCore" Version="1.14.0-beta.1" />
     <PackageVersion Include="OpenTelemetry.Exporter.Zipkin" Version="1.14.0" />
     <PackageVersion Include="OpenTelemetry.Instrumentation.Http"  Version="1.15.0"/>
-    <PackageVersion Include="OpenTelemetry.Instrumentation.Runtime"  Version="1.15.0"/>    
-    <PackageVersion Include="OpenTelemetry.Extensions.Hosting" Version="1.15.2" />
+    <PackageVersion Include="OpenTelemetry.Instrumentation.Runtime"  Version="1.15.0"/>
+    <PackageVersion Include="OpenTelemetry.Extensions.Hosting" Version="1.15.3" />
     <PackageVersion Include="OpenTelemetry.Instrumentation.AspNetCore" Version="1.15.1" />
     <PackageVersion Include="Paramore.Darker" Version="4.1.1" />
     <PackageVersion Include="Paramore.Darker.AspNetCore" Version="4.1.1" />