Fix onetbb propagation failure in bzlmod

[phaedon]

Client libraries have to duplicate the import of onetbb in the MODULE file, even when they don't directly use it. This is due to the select statement which is a conditional branch.

fmeum@ writes:
"This could be fixed in the rules by wrapping labels in Label(...)."

See
https://bazelbuild.slack.com/archives/C014RARENH0/p1706865213498849?thread_ts=1706796383.461789&cid=C014RARENH0