Use the .NET 6.0 SDK an run tests on .NET 6

Author: 0xced

.github/workflows/continuous-integration.yml

@@ -23,6 +23,10 @@ jobs:
       nupkg-filename: ${{ steps.dotnet-pack.outputs.nupkg-filename }}
       release-body: ${{ steps.tag-message.outputs.release-notes }}
     steps:
+      - name: Install .NET 6.0 SDK
+        uses: actions/setup-dotnet@v1
+        with:
+          dotnet-version: 6.0.x
       - name: Checkout git repository
         uses: actions/checkout@v2
         with:

global.json

@@ -1,7 +1,7 @@
 {
   "$schema": "https://json.schemastore.org/global",
   "sdk": {
-    "version": "5.0.400",
+    "version": "6.0.100",
     "allowPrerelease": false,
     "rollForward": "latestMinor"
   }

serilog-formatting-log4net.sln

@@ -5,6 +5,7 @@ ProjectSection(SolutionItems) = preProject
 	global.json = global.json
 	NuGet.config = NuGet.config
 	.config\dotnet-tools.json = .config\dotnet-tools.json
+	.github\workflows\continuous-integration.yml = .github\workflows\continuous-integration.yml
 EndProjectSection
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Serilog.Formatting.Log4Net", "src\Serilog.Formatting.Log4Net.csproj", "{66DF8036-B2E9-4FD1-9204-012EE3F9A2E4}"

tests/Serilog.Formatting.Log4Net.Tests.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <LangVersion>8.0</LangVersion>
     <Nullable>enable</Nullable>
     <IsPackable>false</IsPackable>