fix: Update all projects to target .NET 8.0 and fix CI workflow to use correct .NET version

Author: CorentinGS

.github/workflows/ci.yml

@@ -11,7 +11,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: actions/setup-dotnet@v4
         with:
-          dotnet-version: 9.0.x
+          dotnet-version: 8.0.x
       - run: dotnet test
   build-pack:
     name: Build & Publish
@@ -21,7 +21,7 @@ jobs:
       - name: Setup .NET
         uses: actions/setup-dotnet@v4
         with:
-          dotnet-version: ${{ env.dotnet }}
+          dotnet-version: 8.0.x
       - run: dotnet restore src/ZaString
       - run: mkdir -p artifacts
       - run: dotnet pack src/ZaString --configuration Release --output artifacts --no-build

samples/ZaString.Demo/ZaString.Demo.csproj

@@ -2,7 +2,7 @@
 
     <PropertyGroup>
         <OutputType>Exe</OutputType>
-        <TargetFramework>net9.0</TargetFramework>
+        <TargetFramework>net8.0</TargetFramework>
         <ImplicitUsings>enable</ImplicitUsings>
         <Nullable>enable</Nullable>
     </PropertyGroup>

src/ZaString/ZaString.csproj

@@ -1,14 +1,14 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
     <PropertyGroup>
-        <TargetFramework>net9.0</TargetFramework>
+        <TargetFramework>net8.0</TargetFramework>
         <ImplicitUsings>enable</ImplicitUsings>
         <Nullable>enable</Nullable>
         <PackageId>ZaString</PackageId>
         <Authors>Corentin Giaufer Saubert</Authors>
         <License>MIT</License>
         <Description>ZaString is a library for zero-allocation string manipulation in C# using Span and ReadonlySpan.</Description>
-        <Version>0.1.0-rc</Version>
+        <Version>0.1.0-rc.1</Version>
         <RepositoryUrl>https://github.com/CorentinGS/ZaString</RepositoryUrl>
     </PropertyGroup>
 

tests/ZaString.Benchmarks/ZaString.Benchmarks.csproj

@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
-        <TargetFramework>net9.0</TargetFramework>
+        <TargetFramework>net8.0</TargetFramework>
         <OutputType>Exe</OutputType>
     </PropertyGroup>
     <PropertyGroup>

tests/ZaString.Tests/ZaString.Tests.csproj

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