Update aspnet Extensions monorepo to v3.1.8

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
Microsoft.Extensions.Configuration.CommandLine (source)	nuget	patch	3.1.7 -> 3.1.8
Microsoft.Extensions.Configuration.EnvironmentVariables (source)	nuget	patch	3.1.7 -> 3.1.8
Microsoft.Extensions.Configuration.FileExtensions (source)	nuget	patch	3.1.7 -> 3.1.8
Microsoft.Extensions.Configuration.Json (source)	nuget	patch	3.1.7 -> 3.1.8
Microsoft.Extensions.Logging.Console (source)	nuget	patch	3.1.7 -> 3.1.8

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Release Notes

aspnet/Extensions

v3.1.8

Compare Source

• Release Notes
• Download and Install

Repos

• CLI
• CoreCLR
• Core-Setup
• ASP
• Extensions
• ASPNETCORE-Tooling
• Toolset
• SDK
• EF Core
• WPF
• Winforms

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