Bump OpenTelemetry.AutoInstrumentation from 1.1.0 to 1.2.0 (#379)

Bumps [OpenTelemetry.AutoInstrumentation](https://github.com/open-telemetry/opentelemetry-dotnet-instrumentation) from 1.1.0 to 1.2.0.
- [Release notes](https://github.com/open-telemetry/opentelemetry-dotnet-instrumentation/releases)
- [Changelog](https://github.com/open-telemetry/opentelemetry-dotnet-instrumentation/blob/main/CHANGELOG.md)
- [Commits](open-telemetry/opentelemetry-dotnet-instrumentation@v1.1.0...v1.2.0)

---
updated-dependencies:
- dependency-name: OpenTelemetry.AutoInstrumentation
  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>

src/Splunk.OpenTelemetry.AutoInstrumentation/Splunk.OpenTelemetry.AutoInstrumentation.csproj

@@ -55,7 +55,7 @@
     <Content Include="splunk-launch.*">
       <PackageCopyToOutput>true</PackageCopyToOutput>
     </Content>
-    <PackageReference Include="OpenTelemetry.AutoInstrumentation" Version="1.1.0">
+    <PackageReference Include="OpenTelemetry.AutoInstrumentation" Version="1.2.0">
       <PrivateAssets>none</PrivateAssets> <!-- Ensures that content and build transitive dependencies are properly delivered -->
     </PackageReference>
     <None Include="splunk-logo-256x256.png" Pack="true" PackagePath="images" />