Update projects to .NET 10

Author: CorentinGS

samples/ZaString.Demo/ZaString.Demo.csproj

@@ -2,7 +2,7 @@
 
     <PropertyGroup>
         <OutputType>Exe</OutputType>
-        <TargetFramework>net8.0</TargetFramework>
+        <TargetFramework>net10.0</TargetFramework>
         <ImplicitUsings>enable</ImplicitUsings>
         <Nullable>enable</Nullable>
         <IsPackable>false</IsPackable>

src/ZaString/ZaString.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
-        <TargetFrameworks>net8.0;net9.0;net10.0</TargetFrameworks>
+        <TargetFramework>net10.0</TargetFramework>
         <!-- NOTE: netstandard2.1 was considered but requires too many changes:
              - Code uses C# 10+ features (file-scoped namespaces, global usings)
              - Relies on ISpanFormattable, IUtf8SpanFormattable, InterpolatedStringHandler
@@ -11,7 +11,7 @@
         <PackageId>ZaString</PackageId>
         <Authors>Corentin Giaufer Saubert</Authors>
         <License>MIT</License>
-        <Description>ZaString is a high-performance, zero-allocation string manipulation library for C# that uses Span and ReadOnlySpan for optimal memory efficiency. Built for .NET 8.0+, it provides a fluent API for building strings without heap allocations.</Description>
+        <Description>ZaString is a high-performance, zero-allocation string manipulation library for C# that uses Span and ReadOnlySpan for optimal memory efficiency. Built for .NET 10.0, it provides a fluent API for building strings without heap allocations.</Description>
         <RepositoryUrl>https://github.com/CorentinGS/ZaString</RepositoryUrl>
         <RepositoryType>git</RepositoryType>
         <PackageTags>string;span;performance;zero-allocation;memory-efficient;string-builder</PackageTags>

tests/ZaString.Benchmarks/ZaString.Benchmarks.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
-        <TargetFrameworks>net8.0;net9.0;net10.0</TargetFrameworks>
+        <TargetFramework>net10.0</TargetFramework>
         <OutputType>Exe</OutputType>
     </PropertyGroup>
     <PropertyGroup>
@@ -19,4 +19,4 @@
     <ItemGroup>
         <ProjectReference Include="..\..\src\ZaString\ZaString.csproj"/>
     </ItemGroup>
-</Project>
+</Project>

tests/ZaString.Tests/ZaString.Tests.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-        <TargetFrameworks>net8.0;net9.0;net10.0</TargetFrameworks>
+        <TargetFramework>net10.0</TargetFramework>
         <ImplicitUsings>enable</ImplicitUsings>
         <Nullable>enable</Nullable>
         <IsPackable>false</IsPackable>