Bump Temporalio.Extensions.DiagnosticSource from 1.3.1 to 1.4.0 (#123)

Bumps [Temporalio.Extensions.DiagnosticSource](https://github.com/temporalio/sdk-dotnet) from 1.3.1 to 1.4.0.
- [Release notes](https://github.com/temporalio/sdk-dotnet/releases)
- [Commits](temporalio/sdk-dotnet@1.3.1...1.4.0)

---
updated-dependencies:
- dependency-name: Temporalio.Extensions.DiagnosticSource
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

sample/ServiceDefaults/ServiceDefaults.csproj

@@ -19,7 +19,7 @@
     <PackageReference Include="OpenTelemetry.Instrumentation.GrpcNetClient" Version="1.8.0-beta.1" />
     <PackageReference Include="OpenTelemetry.Instrumentation.Http" Version="1.10.0" />
     <PackageReference Include="OpenTelemetry.Instrumentation.Runtime" Version="1.10.0" />
-    <PackageReference Include="Temporalio.Extensions.DiagnosticSource" Version="1.3.1" />
+    <PackageReference Include="Temporalio.Extensions.DiagnosticSource" Version="1.4.0" />
     <PackageReference Include="Temporalio.Extensions.OpenTelemetry" Version="1.4.0" />
   </ItemGroup>