Bump Octokit.Webhooks.AspNetCore from 1.5.2 to 2.0.0

Bumps [Octokit.Webhooks.AspNetCore](https://github.com/octokit/webhooks.net) from 1.5.2 to 2.0.0.
- [Release notes](https://github.com/octokit/webhooks.net/releases)
- [Commits](octokit/webhooks.net@v1.5.2...v2.0.0)

---
updated-dependencies:
- dependency-name: Octokit.Webhooks.AspNetCore
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Directory.Packages.props

@@ -23,7 +23,7 @@
     <PackageVersion Include="NodaTime" Version="3.1.9" />
     <PackageVersion Include="Octokit" Version="6.0.0" />
     <PackageVersion Include="Octokit.GraphQL" Version="0.2.0-beta" />
-    <PackageVersion Include="Octokit.Webhooks.AspNetCore" Version="1.5.2" />
+    <PackageVersion Include="Octokit.Webhooks.AspNetCore" Version="2.0.0" />
     <PackageVersion Include="Polly" Version="7.2.3" />
     <PackageVersion Include="ReportGenerator" Version="5.1.22" />
     <PackageVersion Include="Shouldly" Version="4.2.1" />