QUnit / Runner: net6 -> net8 (DevExpress#31046)

Co-authored-by: Mikhail Preyskurantov <5574159+mpreyskurantov@users.noreply.github.com>

Author: alexslavr

.github/workflows/build_all.yml

@@ -9,7 +9,7 @@ on:
 
 jobs:
   build:
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
 
     steps:
       - name: Get sources
@@ -20,6 +20,11 @@ jobs:
         with:
           node-version: '20'
 
+      - name: Set up .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: 6.0.x
+
       - uses: pnpm/action-setup@v3
         with:
           version: 9

.github/workflows/ts_declarations.yml

@@ -65,7 +65,7 @@ jobs:
         fi
 
   validate-declarations:
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-latest
     timeout-minutes: 60
     steps:
     - name: Get sources
@@ -76,6 +76,11 @@ jobs:
       with:
         node-version: '20'
 
+    - name: Set up .NET
+      uses: actions/setup-dotnet@v4
+      with:
+        dotnet-version: 6.0.x
+
     - uses: pnpm/action-setup@v3
       with:
         version: 9

.github/workflows/wrapper_tests.yml

@@ -14,7 +14,7 @@ env:
 
 jobs:
   test:
-    runs-on: devextreme-shr2
+    runs-on: ubuntu-22.04
     timeout-minutes: 40
 
     steps:
@@ -31,6 +31,11 @@ jobs:
         with:
           node-version: '20'
 
+      - name: Set up .NET
+        uses: actions/setup-dotnet@v4
+        with:
+          dotnet-version: 6.0.x
+
       - uses: pnpm/action-setup@v3
         with:
           version: 9

packages/devextreme/testing/runner/runner.csproj

@@ -1,12 +1,12 @@
-<Project Sdk="Microsoft.NET.Sdk.Web" ToolsVersion="15.0">
+<Project Sdk="Microsoft.NET.Sdk.Web">
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="6.0.27" />
-    <PackageReference Include="Microsoft.AspNetCore.Mvc.Razor.RuntimeCompilation" Version="6.0.27" />
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.NewtonsoftJson" Version="8.0.19" />
+    <PackageReference Include="Microsoft.AspNetCore.Mvc.Razor.RuntimeCompilation" Version="8.0.19" />
   </ItemGroup>
 
   <PropertyGroup>
-    <TargetFramework>net6</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
     <PreserveCompilationContext>true</PreserveCompilationContext>
     <StartupObject>Runner.Program</StartupObject>
     <OutputType>Exe</OutputType>