chore(deps): update dotnet monorepo to v8

| datasource | package                                 | from  | to    |
| ---------- | --------------------------------------- | ----- | ----- |
| nuget      | Microsoft.Extensions.Configuration.Json | 6.0.0 | 8.0.0 |
| nuget      | Microsoft.Extensions.Configuration.Json | 7.0.0 | 8.0.0 |
| nuget      | System.Security.Cryptography.Pkcs       | 6.0.4 | 8.0.0 |
| nuget      | System.Security.Cryptography.Pkcs       | 7.0.3 | 8.0.0 |
| nuget      | System.Text.Encoding.CodePages          | 6.0.0 | 8.0.0 |
| nuget      | System.Text.Encoding.CodePages          | 7.0.0 | 8.0.0 |

EPPlus/EPPlus.csproj

@@ -41,29 +41,29 @@
   </ItemGroup>
 
   <ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.0'">
-    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="6.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="8.0.0" />
     <PackageReference Include="System.ComponentModel.TypeConverter" Version="4.3.0" />
     <PackageReference Include="System.Data.Common" Version="4.3.0" />
     <PackageReference Include="System.Drawing.Common" Version="4.7.3" />
     <PackageReference Include="System.Reflection" Version="4.3.0" />
     <PackageReference Include="System.Security.Claims" Version="4.3.0" />
-    <PackageReference Include="System.Security.Cryptography.Pkcs" Version="6.0.4" />
+    <PackageReference Include="System.Security.Cryptography.Pkcs" Version="8.0.0" />
     <PackageReference Include="System.Security.Cryptography.X509Certificates" Version="4.3.2" />
-    <PackageReference Include="System.Text.Encoding.CodePages" Version="6.0.0" />
+    <PackageReference Include="System.Text.Encoding.CodePages" Version="8.0.0" />
     <PackageReference Include="System.Xml.XmlDocument" Version="4.3.0" />
     <PackageReference Include="System.Xml.XPath.XmlDocument" Version="4.3.0" />
   </ItemGroup>
 
   <ItemGroup Condition="'$(TargetFramework)' == 'net6.0' or '$(TargetFramework)' == 'net8.0'">
-    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="7.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="8.0.0" />
     <PackageReference Include="System.ComponentModel.TypeConverter" Version="4.3.0" />
     <PackageReference Include="System.Data.Common" Version="4.3.0" />
     <PackageReference Include="System.Drawing.Common" Version="4.7.3" />
     <PackageReference Include="System.Reflection" Version="4.3.0" />
     <PackageReference Include="System.Security.Claims" Version="4.3.0" />
-    <PackageReference Include="System.Security.Cryptography.Pkcs" Version="7.0.3" />
+    <PackageReference Include="System.Security.Cryptography.Pkcs" Version="8.0.0" />
     <PackageReference Include="System.Security.Cryptography.X509Certificates" Version="4.3.2" />
-    <PackageReference Include="System.Text.Encoding.CodePages" Version="7.0.0" />
+    <PackageReference Include="System.Text.Encoding.CodePages" Version="8.0.0" />
     <PackageReference Include="System.Xml.XmlDocument" Version="4.3.0" />
     <PackageReference Include="System.Xml.XPath.XmlDocument" Version="4.3.0" />
   </ItemGroup>