Build(deps): Bump log4net from 2.0.16 to 2.0.17

Bumps [log4net](https://github.com/apache/logging-log4net) from 2.0.16 to 2.0.17.
- [Release notes](https://github.com/apache/logging-log4net/releases)
- [Changelog](https://github.com/apache/logging-log4net/blob/master/doc/ReleaseInstructions-legacy.txt)
- [Commits](apache/logging-log4net@rel/2.0.16...rel/2.0.17)

---
updated-dependencies:
- dependency-name: log4net
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

src/Delta.CertXplorer.Core/Delta.CertXplorer.Core.csproj

@@ -150,7 +150,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="log4net" Version="2.0.16" />
+    <PackageReference Include="log4net" Version="2.0.17" />
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="8.0.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>