Bump Amazon.Lambda.APIGatewayEvents from 2.7.0 to 2.7.1 (#133)

Bumps [Amazon.Lambda.APIGatewayEvents](https://github.com/aws/aws-lambda-dotnet) from 2.7.0 to 2.7.1.
- [Changelog](https://github.com/aws/aws-lambda-dotnet/blob/master/RELEASE.CHANGELOG.md)
- [Commits](https://github.com/aws/aws-lambda-dotnet/commits)

---
updated-dependencies:
- dependency-name: Amazon.Lambda.APIGatewayEvents
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

test/SimpleAPI.Tests/SimpleAPI.Tests.csproj

@@ -18,7 +18,7 @@
   <ItemGroup>
     <PackageReference Include="Amazon.Lambda.Core" Version="2.2.0" />
     <PackageReference Include="Amazon.Lambda.TestUtilities" Version="2.0.0" />
-    <PackageReference Include="Amazon.Lambda.APIGatewayEvents" Version="2.7.0" />
+    <PackageReference Include="Amazon.Lambda.APIGatewayEvents" Version="2.7.1" />
     <PackageReference Include="AWSSDK.Extensions.NETCore.Setup" Version="3.7.301" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.10.0" />
     <PackageReference Include="xunit" Version="2.9.0" />