Uncomment `GoldenWeek` from `ForkUpgradeParams`

[LesnyRumcajs]

Summary

The field upgrade_golden_week_height in ForkUpgradeParams
(and their corresponding entries in the TryFrom<&ChainConfig> implementation) is
currently commented out in src/rpc/methods/state.rs as part of the nv28 skeleton PR (#6706).

These need to be uncommented once the upgrade heights are finalised. Note that this will
also require generating new RPC snapshots.

Tasks

• Uncomment upgrade_golden_week_height: ChainEpoch and upgrade_xxx_height: ChainEpoch
  in the ForkUpgradeParams struct
• Uncomment upgrade_golden_week_height: get_height(GoldenWeek)? in the TryFrom<&ChainConfig> implementation
• Update the OpenRPC specs (docs/openrpc-specs/v0.json and docs/openrpc-specs/v1.json)
  accordingly
• Generate new RPC snapshots (required due to the ForkUpgradeParams struct change)

References

• PR #6706 — nv28 skeleton
  (comment: chore: nv28 skeleton #6706 (comment))