upgrade to dotnet 9.0

Author: BalintBende

bcf-toolkit.sln.DotSettings.user

@@ -1,8 +1,14 @@
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+	<s:String x:Key="/Default/CodeInspection/ExcludedFiles/FilesAndFoldersToSkip2/=7020124F_002D9FFC_002D4AC3_002D8F3D_002DAAB8E0240759_002Ff_003AXDocument_002Ecs_002Fl_003A_002E_002E_003F_002E_002E_003F_002E_002E_003FLibrary_003FApplication_0020Support_003FJetBrains_003FRider2024_002E3_003Fresharper_002Dhost_003FSourcesCache_003Fcc158b0877cb1b3b66c7d696becfcb9edc86d3cd1611ef9a2468f8162b7b_003FXDocument_002Ecs/@EntryIndexedValue">ForceIncluded</s:String>
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   &lt;Solution /&gt;
 &lt;/SessionState&gt;</s:String>
+	<s:String x:Key="/Default/Environment/UnitTesting/UnitTestSessionStore/Sessions/=1968bffa_002D93c7_002D49e1_002D98c2_002Dd3709caea64e/@EntryIndexedValue">&lt;SessionState ContinuousTestingMode="0" IsActive="True" Name="All tests from Solution" xmlns="urn:schemas-jetbrains-com:jetbrains-ut-session"&gt;
+  &lt;Solution /&gt;
+&lt;/SessionState&gt;</s:String>
+	
+	
 	<s:String x:Key="/Default/Environment/UnitTesting/UnitTestSessionStore/Sessions/=4dc5af78_002D6a8f_002D4f5b_002D8833_002Df0ff81e0c049/@EntryIndexedValue">&lt;SessionState ContinuousTestingMode="0" IsActive="True" Name="All tests from Solution #3" xmlns="urn:schemas-jetbrains-com:jetbrains-ut-session"&gt;
   &lt;Solution /&gt;
 &lt;/SessionState&gt;</s:String>
@@ -79,6 +85,8 @@
 
 
 
+	
+	
 
 
 

src/bcf-toolkit/bcf-toolkit.csproj

@@ -2,7 +2,7 @@
     <PropertyGroup>
         <PackageId>Smino.Bcf.Toolkit</PackageId>
         <OutputType>Exe</OutputType>
-        <TargetFramework>net8.0</TargetFramework>
+        <TargetFramework>net9.0</TargetFramework>
         <LangVersion>latest</LangVersion>
         <Nullable>enable</Nullable>
         <Title>bcf-toolkit</Title>

src/tests/tests.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-        <TargetFramework>net8.0</TargetFramework>
+        <TargetFramework>net9.0</TargetFramework>
 
         <IsPackable>false</IsPackable>