Bump log4net from 2.0.12 to 2.0.14

Bumps [log4net](https://github.com/apache/logging-log4net) from 2.0.12 to 2.0.14.
- [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@rc/2.0.12...rel/2.0.14)

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

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

Author: dependabot[bot]

src/NHibernate.Test/NHibernate.Test.csproj

@@ -54,7 +54,7 @@
     </Compile>
   </ItemGroup>
   <ItemGroup>
-    <PackageReference Include="log4net" Version="2.0.12" />
+    <PackageReference Include="log4net" Version="2.0.14" />
     <PackageReference Include="Microsoft.AspNetCore.OData" Version="7.5.12" />
     <PackageReference Include="Microsoft.Data.SqlClient" Version="3.0.0" />
     <PackageReference Include="System.Data.SQLite.Core" Version="1.0.115.5" />