Update actions to net 9

Author: Banane9

.github/workflows/build.yml

@@ -43,7 +43,7 @@ jobs:
     - name: Setup Dotnet
       uses: actions/setup-dotnet@v4
       with:
-        dotnet-version: 8.x
+        dotnet-version: 9.x
         source-url: https://nuget.pkg.github.com/ResoniteModdingGroup/index.json
 
     - name: Add MonkeyLoader NuGet Source
@@ -98,7 +98,7 @@ jobs:
     - name: Setup Dotnet
       uses: actions/setup-dotnet@v4
       with:
-        dotnet-version: 8.x
+        dotnet-version: 9.x
         source-url: https://nuget.pkg.github.com/ResoniteModdingGroup/index.json
 
     - name: Add MonkeyLoader NuGet Source

.github/workflows/publish.yml

@@ -68,7 +68,7 @@ jobs:
       - name: Setup Dotnet
         uses: actions/setup-dotnet@v4
         with:
-          dotnet-version: 8.x
+          dotnet-version: 9.x
           source-url: https://nuget.pkg.github.com/ResoniteModdingGroup/index.json
 
       - name: Add MonkeyLoader NuGet Source

ArrayEditing/ArrayEditing.csproj

@@ -47,9 +47,5 @@
     </PackageReference>
     <PackageReference Include="Resonite.Elements.Core" Version="1.4.3" />
     <PackageReference Include="Resonite.FrooxEngine" Version="2025.1.17.6" />
-    <PackageReference Include="System.Text.Json" Version="9.0.2">
-      <PrivateAssets>all</PrivateAssets>
-      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
-    </PackageReference>
   </ItemGroup>
 </Project>