fulu: missing new spec test runners

[twoeths]

Problem description

• implements "networking" spec tests
• "merkle_proofs" spec tests are enabled on peerDAS, however some of them failed https://github.com/ChainSafe/lodestar/blob/1f339ea5e23ead45900737954442345469ad9ed8/packages/beacon-node/test/spec/presets/merkle.test.ts#L32 (also skip "blob_kzg_commitment" for the branch going to merge to peerDAS through #7827

Solution description

• implement new "networking" spec tests
• enable and fix "merkle_proofs" spec tests

Additional context

No response