Bump Microsoft.AspNetCore.Authentication.JwtBearer in /src/Api

Bumps [Microsoft.AspNetCore.Authentication.JwtBearer](https://github.com/aspnet/AspNetCore) from 3.1.4 to 3.1.18.
- [Release notes](https://github.com/aspnet/AspNetCore/releases)
- [Commits](dotnet/aspnetcore@v3.1.4...v3.1.18)

---
updated-dependencies:
- dependency-name: Microsoft.AspNetCore.Authentication.JwtBearer
  dependency-type: direct:production
...

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Author: dependabot[bot]

src/Api/Api.csproj

@@ -8,7 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="3.1.4" />
+    <PackageReference Include="Microsoft.AspNetCore.Authentication.JwtBearer" Version="3.1.18" />
     <PackageReference Include="Microsoft.VisualStudio.Azure.Containers.Tools.Targets" Version="1.10.9" />
   </ItemGroup>