How should we handle imports of time/tzdata by dependencies?

[djaglowski]

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Describe the issue you're reporting

This relates to discussion open-telemetry/opentelemetry-collector#9991, in which there seems to be consensus that we will follow the official guidance from time/tzdata which states: This package should normally be imported by a program's main package, not by a library. Libraries normally shouldn't decide whether to include the timezone database in a program.

As noted in #32506, we are currently pulling in a dependency in one of our components which imports the database. This effectively makes the decision for all of contrib that it will be included in the distro. I believe we should discourage this somehow.

Should we make a policy that components which import the database cannot be included in contrib?

[github-actions]

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