Fix header changing

.gitlab-ci.yml

-image : mcr.microsoft.com/dotnet/sdk:6.0
+image : mcr.microsoft.com/dotnet/sdk:8.0
 
 stages:
   - build

Main/Main.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <AssemblyVersion>2021.6.22.8</AssemblyVersion>
     <FileVersion>2021.6.22.8</FileVersion>
     <Version>1.0</Version>

README.md

 # Twinzo C# development kit
-.NET 5 SDK for digital twin developers used to connect your C# code with twinzo platform.
+.NET 8 SDK for digital twin developers used to connect your C# code with twinzo platform.
 
 Providing whole API Endpoint communication methods and data contracts for easy serialization and transporting.
 

SDK/SDK.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <PackageId>tDevKit</PackageId>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <AssemblyVersion>2021.6.28.25</AssemblyVersion>
     <FileVersion>2021.6.28.25</FileVersion>
     <Version>4.10.0</Version>

Test/Test/Test.csproj

 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
 
     <IsPackable>false</IsPackable>
 
@@ -11,10 +11,10 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.0.0" />
-    <PackageReference Include="MSTest.TestAdapter" Version="2.2.7" />
-    <PackageReference Include="MSTest.TestFramework" Version="2.2.7" />
-    <PackageReference Include="WireMock.Net" Version="1.4.26" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" />
+    <PackageReference Include="MSTest.TestAdapter" Version="3.2.2" />
+    <PackageReference Include="MSTest.TestFramework" Version="3.2.2" />
+    <PackageReference Include="WireMock.Net" Version="1.5.49" />
   </ItemGroup>
 
   <ItemGroup>