Bump Serilog from 4.0.1 to 4.0.2 in /src (#535)

Author: dependabot[bot]

src/Directory.Packages.props

@@ -13,7 +13,7 @@
     <PackageVersion Include="Polyfill" Version="6.10.0" />
     <PackageVersion Include="ProjectDefaults" Version="1.0.135" />
     <PackageVersion Include="Resourcer.Fody" Version="1.8.1" />
-    <PackageVersion Include="Serilog" Version="4.0.1" />
+    <PackageVersion Include="Serilog" Version="4.0.2" />
     <PackageVersion Include="Serilog.Sinks.File" Version="6.0.0" />
     <PackageVersion Include="System.Collections.Immutable" Version="8.0.0" />
     <PackageVersion Include="System.Globalization.Extensions" Version="4.3.0" />