[Breaking change]: Ambiguous overload resolution

[xtqqczze]

Description

• [main] Update dependencies from dotnet/efcore, dotnet/runtime aspnetcore#55010 (comment)
  • https://csharp.godbolt.org/z/K31fxvPs7

Version

.NET 9

Previous behavior

no error

New behavior

(13,23): error CS0121: The call is ambiguous between the following methods or properties: 'Program.Join(string, params string[])' and 'Program.Join(string, params ReadOnlySpan<string>)'

Type of breaking change

• Binary incompatible: Existing binaries might encounter a breaking change in behavior, such as failure to load or execute, and if so, require recompilation.
• Source incompatible: When recompiled using the new SDK or component or to target the new runtime, existing source code might require source changes to compile successfully.
• Behavioral change: Existing binaries might behave differently at run time.

Reason for change

• Reapply keyword params runtime#101499
• Add implicit operator ROS<string?> for StringValues runtime#101457
• Reevaluate params ReadOnlySpan<string> overloads from #77873 runtime#101261

Recommended action

• dotnet/aspnetcore@7e353a3

Feature area

C#

Affected APIs

No response

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Associated WorkItem - 360652