fix incorrect version of the application (#73)

Author: mrerro

PrinterApp/PrinterApp.csproj

@@ -11,7 +11,7 @@
     <Title>PrinterApp</Title>
     <Description>gui for work https://app.profcomff.com/print/docs</Description>
     <Authors>Dyakov EI</Authors>
-    <Version>2.1.12.6</Version>
+    <Version>2.1.12.9</Version>
     <Company>dyakov.space</Company>
     <Copyright>dyakov.space @ 2023</Copyright>
   </PropertyGroup>