* Updated NuGets: Serilog 2.9.0, Serilog.Sinks.PeriodicBatching 2.3.0 and other where possibe (also in packages.config)

Author: ckadluba

src/Serilog.Sinks.MSSqlServer/packages.config

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Serilog" version="2.5.0" targetFramework="net452" />
-  <package id="Serilog.Sinks.PeriodicBatching" version="2.1.1" targetFramework="net452" />
+  <package id="Serilog" version="2.9.0" targetFramework="net452" />
+  <package id="Serilog.Sinks.PeriodicBatching" version="2.3.0" targetFramework="net452" />
 </packages>