switch to CHaP/Hackage for all repositories

This reverts commit be759d0f.

ouroboros-network: init at github:locallycompact/ouroboros-network/13dbe0bf9bca33469d105f22cdcb2b6d1a32c9b9

ouroboros-network-protocols: init at github:input-output-hk/ouroboros-network/c65353299ff3efde05bf07d628a2ac7ea3193458

ouroboros-network-mock: init at github:input-output-hk/ouroboros-network/c65353299ff3efde05bf07d628a2ac7ea3193458

ouroboros-network-api: init at github:input-output-hk/ouroboros-network/c65353299ff3efde05bf07d628a2ac7ea3193458

horizon-platform: f0c4d169ad1e7d019c52eff811b10d00dcef19e7 -> 2829a042394a6dce7e427001a263cbc5c074a0fa

horizon-platform: 491f09eeac3c36c60d83f5192f294f4b18885eea -> f0c4d169ad1e7d019c52eff811b10d00dcef19e7