[processor/resourcedetection] stepping should be a string

[mx-psi]

Component(s)

processor/resourcedetection

What happened?

Description

Same as #29025 but for CPU stepping number (which surprisingly is not a number).

Steps to Reproduce

See open-telemetry/semantic-conventions/issues/495

Expected Result

host.cpu.stepping should be set to a string

Actual Result

It is set to an integer

Collector version

any

Environment information

Environment

not relevant

OpenTelemetry Collector configuration

No response

Log output

No response

Additional context

cc @ChrsMark interested in taking this?

[github-actions]

Pinging code owners:

• processor/resourcedetection: @Aneurysm9 @dashpole

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[ChrsMark]

cc @ChrsMark interested in taking this?

Sure @mx-psi, happy to take it :)