Bump log4net from 2.0.8 to 2.0.10 in /src/SPCoder.SharePoint.Client

Bumps [log4net](https://github.com/apache/logging-log4net) from 2.0.8 to 2.0.10.
- [Release notes](https://github.com/apache/logging-log4net/releases)
- [Changelog](https://github.com/apache/logging-log4net/blob/master/ReleaseInstructions.txt)
- [Commits](apache/logging-log4net@rel/2.0.8...rel/2.0.10)

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

Author: dependabot[bot]

src/SPCoder.SharePoint.Client/packages.config

@@ -3,7 +3,7 @@
   <package id="AppForSharePointOnlineWebToolkit" version="3.1.5" targetFramework="net45" />
   <package id="Camlex.Client.dll" version="4.0.0" targetFramework="net47" />
   <package id="EPPlus" version="4.5.3.2" targetFramework="net47" />
-  <package id="log4net" version="2.0.8" targetFramework="net47" />
+  <package id="log4net" version="2.0.10" targetFramework="net47" />
   <package id="Microsoft.AspNet.WebApi.Client" version="5.2.3" targetFramework="net45" />
   <package id="Microsoft.AspNet.WebApi.Core" version="5.2.3" targetFramework="net45" />
   <package id="Microsoft.Azure.ActiveDirectory.GraphClient" version="2.1.0" targetFramework="net45" />