(#516) Remove compiling for .netcoreapp3.1

This target framework is no longer supported, so we need to remove it
from our build processes.

Author: gep13

.github/workflows/build.yml

@@ -26,12 +26,10 @@ jobs:
       - name: Fetch all tags and branches
         run: git fetch --prune --unshallow
 
-      - name: Install .NET SDK 3.1.x and 5.0.x
+      - name: Install .NET SDK 5.0.x
         uses: actions/setup-dotnet@v3
         with:
-          dotnet-version: |
-            3.1.x
-            5.0.x
+          dotnet-version: '5.0.x'
 
       - name: Cache Tools
         uses: actions/cache@v2

src/GitReleaseManager.Cli/GitReleaseManager.Cli.csproj

@@ -3,7 +3,7 @@
         <LangVersion>8.0</LangVersion>
         <OutputType>Exe</OutputType>
         <AssemblyName>GitReleaseManager</AssemblyName>
-        <TargetFrameworks>net48;netcoreapp3.1;net6.0</TargetFrameworks>
+        <TargetFrameworks>net48;net6.0</TargetFrameworks>
         <Title>GitReleaseManager.Cli</Title>
         <Description>Create release notes in markdown given a milestone</Description>
         <IsPackable>false</IsPackable>

src/GitReleaseManager.Core.Tests/GitReleaseManager.Core.Tests.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
         <LangVersion>8.0</LangVersion>
-        <TargetFrameworks>net48;netcoreapp3.1;net6.0</TargetFrameworks>
+        <TargetFrameworks>net48;net6.0</TargetFrameworks>
         <Title>GitReleaseManager.Core.Tests</Title>
         <Description>Test Project for GitReleaseManager.Core</Description>
         <NoWarn>$(NoWarn);CA1707;Serilog004;</NoWarn>

src/GitReleaseManager.IntegrationTests/GitReleaseManager.IntegrationTests.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
         <LangVersion>8.0</LangVersion>
-        <TargetFrameworks>net48;netcoreapp3.1;net6.0</TargetFrameworks>
+        <TargetFrameworks>net48;net6.0</TargetFrameworks>
         <Title>GitReleaseManager.IntegrationTests</Title>
         <Description>Integration Test Project for GitReleaseManager</Description>
         <NoWarn>$(NoWarn);CA1707;Serilog004;</NoWarn>

src/GitReleaseManager.Tests/GitReleaseManager.Tests.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
         <LangVersion>8.0</LangVersion>
-        <TargetFrameworks>net48;netcoreapp3.1;net6.0</TargetFrameworks>
+        <TargetFrameworks>net48;net6.0</TargetFrameworks>
         <Title>GitReleaseManager.Tests</Title>
         <Description>Test Project for GitReleaseManager</Description>
         <NoWarn>$(NoWarn);CA1707;Serilog004;</NoWarn>

src/GitReleaseManager.Tool/GitReleaseManager.Tool.csproj

@@ -6,7 +6,7 @@
         <AssemblyName>GitReleaseManager</AssemblyName>
 
         <PackAsTool>true</PackAsTool>
-        <TargetFrameworks>netcoreapp3.1;net6.0</TargetFrameworks>
+        <TargetFrameworks>net6.0</TargetFrameworks>
         <ToolCommandName>dotnet-gitreleasemanager</ToolCommandName>
         <PackageId>GitReleaseManager.Tool</PackageId>