Bump the nuget group with 1 update

Bumps OpenTelemetry.Exporter.OpenTelemetryProtocol from 1.9.0 to 1.15.3

---
updated-dependencies:
- dependency-name: OpenTelemetry.Exporter.OpenTelemetryProtocol
  dependency-version: 1.15.3
  dependency-type: direct:production
  dependency-group: nuget
...

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Author: dependabot[bot]

src/ProjectTemplate.ServiceDefaults/ProjectTemplate.ServiceDefaults.csproj

@@ -13,7 +13,7 @@
 
     <PackageReference Include="Microsoft.Extensions.Http.Resilience" Version="8.10.0" />
     <PackageReference Include="Microsoft.Extensions.ServiceDiscovery" Version="8.2.2" />
-    <PackageReference Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.9.0" />
+    <PackageReference Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.15.3" />
     <PackageReference Include="OpenTelemetry.Extensions.Hosting" Version="1.9.0" />
     <PackageReference Include="OpenTelemetry.Instrumentation.AspNetCore" Version="1.9.0" />
     <PackageReference Include="OpenTelemetry.Instrumentation.Http" Version="1.9.0" />