Fix job names consistency between SimpleJobAttribute and --runtimes

[ritoban23]

Fix job names consistency between SimpleJobAttribute and --runtimes

Fixes #2840

Problem

When using --runtimes command line arguments, jobs were assigned random names like Job-XXXXXX, while SimpleJobAttribute produced meaningful names like .NET 8.0. This inconsistency made it difficult to identify jobs in benchmark results.

Solution

Added .WithId(runtime.Name) to all job creation paths in ConfigParser.cs:

• CreateJobForGivenRuntime method
• CreateAotJob helper method
• MakeMonoAOTLLVMJob helper method
• MakeWasmJob helper method

Result

Command-line jobs now use meaningful names that match the runtime (e.g., .NET 8.0, .NET 9.0) instead of random IDs, ensuring consistency with SimpleJobAttribute behavior.

[ritoban23]

@dotnet-policy-service agree

[timcassell]

Thanks @ritoban23