modheader: define TrustedPeers types

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#1,269 opened on Oct 24, 2022 0 comments 1 reaction 0 assignees View on GitHub

good first issue

Description

Similarly to `modp2p.Bootstrappers`, we should make `modheader.TrustedPeers` an application- and module-specific type.

_Originally posted by @Wondertan in https://github.com/celestiaorg/celestia-node/pull/1168#discussion_r1001717008_

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