Update semconv version to v1.34.0

[mjwolf]

To support generating the latest mappings between otel and semconv, update the semconv version which is used during file generation.

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• For proposing substantial changes or additions to the schema, have you reviewed the RFC process? n/a
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[github-actions]

Documentation changes preview: https://ecs_bk_2482.docs-preview.app.elstc.co/diff

[github-actions]

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[mjwolf]

Replaced by #2483