Bump the opentelemetry-testing group with 1 update

Bumps OpenTelemetry.Instrumentation.AspNetCore from 1.15.0 to 1.15.1

---
updated-dependencies:
- dependency-name: OpenTelemetry.Instrumentation.AspNetCore
  dependency-version: 1.15.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: opentelemetry-testing
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Directory.Packages.props

@@ -81,7 +81,7 @@
     <PackageVersion Include="OpenTelemetry.Exporter.OpenTelemetryProtocol" Version="1.15.0" />
     <PackageVersion Include="OpenTelemetry.Instrumentation.Http" Version="1.15.0" />
     <PackageVersion Include="OpenTelemetry.Extensions.Hosting" Version="1.15.0" />
-    <PackageVersion Include="OpenTelemetry.Instrumentation.AspNetCore" Version="1.15.0" />
+    <PackageVersion Include="OpenTelemetry.Instrumentation.AspNetCore" Version="1.15.1" />
     <PackageVersion Include="Serilog.Extensions.Hosting" Version="10.0.0" />
     <PackageVersion Include="Serilog.Extensions.Logging" Version="10.0.0" />
     <PackageVersion Include="Serilog.Sinks.Console" Version="6.1.1" />