Add partial message support for gossipsub integration

[raulk]

Summary

Integrates jvm-libp2p partial message support for bandwidth-efficient PeerDAS data column propagation.

Key changes:

• Dependency update: Update jvm-libp2p to version with partial message support
• GossipNetwork interface: Add publishPartial() method with default no-op implementation
• LibP2PGossipNetwork: Implement partial message publishing via Gossip.publishPartial()
• CLI flag: Add --p2p-gossip-partial-messages option (disabled by default)

Dependencies

This PR depends on: libp2p/jvm-libp2p#433

Test plan

• Build passes with partial message feature flag
• Existing MuxFirewallTest passes
• Integration testing with partial message enabled
• PeerDAS data column propagation testing

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Note

Introduces partial message support in the gossip stack and wires a CLI toggle to control it.

• Updates dependency to io.libp2p:jvm-libp2p:develop for partial message capability
• Extends GossipNetwork with publishPartial(topic, PartialMessage) (default throws UnsupportedOperationException)
• Implements publishPartial in LibP2PGossipNetwork via Gossip.publishPartial
• Adds CLI option --p2p-partial-messages-enabled (default: disabled) in P2POptions
• Test tweak: MuxFirewallTest mocks NettyTransport instead of Transport

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