Evaluate fingerprinting test data in `Blazor.BuildPublishTests.DefaultTemplate_CheckFingerprinting`

[maraf]

The BlazorWasmSDK was previously enforcing WasmFingerprintDotnetJs=false. That changed in dotnet/sdk#46233 and now it is driven by WasmSDK and WriteImportMapToHtml property.

We should evaluate whether the Blazor.BuildPublishTests.DefaultTemplate_CheckFingerprinting is still meaningful

[dotnet-policy-service]

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