Drop support of Dotnet 6, use Dotnet 9 instead (#613)

* change from net6 to net9

* ignore warnings to extract strings to static fields, unnecessary

* update test.yml dotnet-version

Author: danFbach

.github/workflows/tests.yml

@@ -21,7 +21,7 @@ jobs:
       - name: Setup .NET Core
         uses: actions/setup-dotnet@v4
         with:
-          dotnet-version: "6.0.x"
+          dotnet-version: "9.0.x"
       - name: Install dependencies
         run: dotnet restore
       - name: Build
@@ -39,7 +39,7 @@ jobs:
       - name: Setup .NET Core
         uses: actions/setup-dotnet@v4
         with:
-          dotnet-version: "6.0.x"
+          dotnet-version: "9.0.x"
       - name: Check with dotnet-format
         run: dotnet format --version
       - name: Check with dotnet-format

tests/Meilisearch.Tests/Meilisearch.Tests.csproj

@@ -1,11 +1,19 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
     <PropertyGroup>
-        <TargetFramework>net6.0</TargetFramework>
+        <TargetFramework>net9.0</TargetFramework>
 
         <IsPackable>false</IsPackable>
     </PropertyGroup>
 
+    <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
+      <NoWarn>1701;1702;CA1861</NoWarn>
+    </PropertyGroup>
+
+    <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
+      <NoWarn>1701;1702;CA1861</NoWarn>
+    </PropertyGroup>
+
     <ItemGroup>
         <PackageReference Include="FluentAssertions" Version="7.0.0" />
         <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />