instrumentation of internal files in scoped packages doesn't work on windows

[Flarna]

What happened?

Steps to Reproduce

Use an instrumentation which patched internal files in an scoped package. I used @opentelemetry/instrumentation-aws-sdk together with AWS SDK v3. This tries to patch e.g. @smithy/middleware-stack/dist-cjs/MiddlewareStack.js, see here.

Expected Result

Instrumentation works independent of the OS used.

Actual Result

Instrumentation fails on windows.

Additional Details

I think problem is somewhere here because name uses mixed slashes @smithy/middleware-stack\\dist-cjs\\MiddlewareStack.js but correct would be backslashes only.

OpenTelemetry Setup Code

import { AwsInstrumentation } from "@opentelemetry/instrumentation-aws-sdk";

registerInstrumentations({
    instrumentations: [
        new AwsInstrumentation({
            suppressInternalInstrumentation: true
        }),
    ]
});

import { SQSClient, ReceiveMessageCommand, DeleteMessageCommand, DeleteMessageBatchCommand, MessageAttributeValue, SendMessageCommand } from "@aws-sdk/client-sqs";
import { SNSClient, PublishCommand } from "@aws-sdk/client-sns";

package.json

{
  "dependencies": {
    "@aws-sdk/client-sqs": "3.461.0",
    "@aws-sdk/client-sns": "3.461.0",
    "@opentelemetry/api": "1.7.0",
    "@opentelemetry/instrumentation-aws-sdk": "0.37.2",
    "@opentelemetry/sdk-trace-node": "1.20.0"
  }
}

Relevant log output

No response

I think this is caused by/related to #3161.