Ipns.ReproviderDuration for PubSub GC

[TobiaszCudnik]

go-ipfs-config part of libp2p/go-libp2p-pubsub-router#92, which fixes #8586.

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[BigLep]

@schomatis : as part of ipfs/kubo#8586 , can you please provide the reviews here?

[lidel]

go-ipfs-config got merged into go-ipfs repo: https://github.com/ipfs/go-ipfs/tree/master/config
If you feel this PR is still relevant, please reopen as a PR against go-ipfs