chore(deps): update dotnet monorepo to v3.1.13

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
Microsoft.AspNetCore.Identity.EntityFrameworkCore (source)	nuget	patch	3.1.12 -> 3.1.13
Microsoft.AspNetCore.Identity.UI (source)	nuget	patch	3.1.12 -> 3.1.13
Microsoft.EntityFrameworkCore (source)	nuget	patch	3.1.12 -> 3.1.13
Microsoft.EntityFrameworkCore.SqlServer (source)	nuget	patch	3.1.12 -> 3.1.13
Microsoft.EntityFrameworkCore.Tools (source)	nuget	patch	3.1.12 -> 3.1.13

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Release Notes

dotnet/aspnetcore

### [`v3.1.13`](https://togithub.com/dotnet/aspnetcore/releases/v3.1.13) [Compare Source](https://togithub.com/dotnet/aspnetcore/compare/v3.1.12...v3.1.13) [Release](https://togithub.com/dotnet/core/releases/tag/v3.1.13)

dotnet/efcore

### [`v3.1.13`](https://togithub.com/dotnet/efcore/releases/v3.1.13) [Compare Source](https://togithub.com/dotnet/efcore/compare/v3.1.12...v3.1.13) This is a patch release of EF Core 3.1 containing only updates to dependencies. There are no additional fixes in this release beyond those already shipped in EF Core 3.1.12.

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