Upgrade to .NET 8, update NuGet packages, version 1.2.0

src/GitCoAuth/GitCoAuth.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>net5.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
 
     <PackAsTool>true</PackAsTool>
     <ToolCommandName>gitcoauth</ToolCommandName>
@@ -13,28 +13,32 @@
     <Company />
     <Product />
     <PackageIconUrl>https://raw.githubusercontent.com/LorenzCK/github-coauth-tool/master/graphics/gitcoauth-logo-256.png</PackageIconUrl>
-	<PackageIconUrl>gitcoauth-logo-128.png</PackageIconUrl>
+    <PackageIcon>gitcoauth-logo-128.png</PackageIcon>
     <RepositoryUrl>https://github.com/LorenzCK/github-coauth-tool</RepositoryUrl>
     <PackageLicenseExpression>MIT</PackageLicenseExpression>
-
-    <Description>GitCoAuth is a simple .NET Core Global Tool that will help you generate co-authorship commit lines, as you should.
 
-Run the tool passing in your co-author's GitHub username and it will generate the correct commit message trailer to add (and copy it to your clipboard).</Description>
+    <Description>
+      GitCoAuth is a simple .NET Core Global Tool that will help you generate co-authorship commit lines, as you should.
+
+      Run the tool passing in your co-author's GitHub username and it will generate the correct commit message trailer to add (and copy it to your clipboard).
+    </Description>
     <PackageReleaseNotes></PackageReleaseNotes>
     <PackageTags>global-tool global-tools github co-authored co-authoring commit git</PackageTags>
     <PackageId>dotnet-gitcoauth</PackageId>
-	<Version>1.1.0</Version>
-    <AssemblyVersion>1.1.0</AssemblyVersion>
-    <FileVersion>1.1.0</FileVersion>
+    <Version>1.2.0</Version>
+    <AssemblyVersion>1.2.0</AssemblyVersion>
+    <FileVersion>1.2.0</FileVersion>
+    <PackageReadmeFile>README.md</PackageReadmeFile>
   </PropertyGroup>
 
   <ItemGroup>
     <None Include="..\..\graphics\gitcoauth-logo-128.png" Pack="true" PackagePath="\" Link="gitcoauth-logo-128.png" />
+    <None Include="..\..\README.md" Pack="true" PackagePath="\"/>
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="RestSharp" Version="107.3.0" />
-    <PackageReference Include="TextCopy" Version="6.1.0" />
+    <PackageReference Include="RestSharp" Version="112.1.0" />
+    <PackageReference Include="TextCopy" Version="6.2.1" />
   </ItemGroup>
 
 </Project>

src/GitCoAuth/Program.cs

@@ -6,6 +6,11 @@ namespace GitCoAuth {
 
     class Program {
 
+        class UserProfile {
+            public string Name { get; set; }
+            public string Email { get; set; }
+        }
+
         async static Task<int> Main(string[] args) {
             if(args.Length != 1) {
                 PrintHelp();
@@ -29,14 +34,14 @@ async static Task<int> Main(string[] args) {
 
         private static void PrintHelp() {
             Console.Error.WriteLine("  gitcoauth <username>");
-            Console.Error.WriteLine("Prints out a commit message trailer that indicates that GitHub user <username> contributed to a commit (and copied it to clipboard, if possible).");
+            Console.Error.WriteLine("Prints out a commit message trailer that indicates that GitHub user <username> contributed to a commit (and copies it to clipboard, if possible).");
         }
 
         private static async Task<(string Name, string Email)> GetUserData(string username) {
             var client = new RestClient("https://api.github.com");
 
             try {
-                var resp = await client.GetJsonAsync<UserProfile>($"/users/{username}");
+                var resp = await client.GetAsync<UserProfile>($"/users/{username}");
 
                 return (
                     resp.Name ?? username,