SemConv should i18N

[shirou]

Hi, I want to translate open-telemetry specifications to Japanese. But I found the text is hard-coded in English, at here, and table header. (perhaps only those two. Status, type, Description is ok for me)

So I think it is better to use some i18n for those texts. If a table header is difficult because of character length, I would like to add only the "MUST be one of the ..." text to the translation.