Chore: Refactor Packages Dependencies

[DhairyaPatel7]

Overview

This PR refactors package dependencies across the codebase to improve package organization and align with third-party package standards. The changes involve updating contract packages, reorganizing package locations, and renaming packages for better consistency.

PR in Open Autonomy - valory-xyz/open-autonomy#2411
PR in Mech Interact - valory-xyz/mech-interact#45

Major Changes

📦 Package Updates

• Updated Agent Registry Contract Package - Bumped the valory/agent_registry contract package to the latest version (bafybeictjtktyj2nq4hqkzslnyp2b4rflgt6fjqigs5qwpzbt2tnynmaxi)
• Updated ERC20 Contract Package - Updated the valory/erc20 contract package hash to the latest version (bafybeih7bmq64cdhyyvfxuknm7vy5pefn75zisg5gdvr75rbwvefqb6dp4)

🔄 Package Refactoring

• Moved Staking Contracts to Third Party:
  • Relocated staking_activity_checker contract from valory packages to third-party dependencies
  • Relocated staking_token contract from valory packages to third-party dependencies
  • Removed local implementations and updated references to use third-party versions

✏️ Package Renaming

• Renamed Mech Marketplace Package - Renamed mech_marketplace to agent_mech for better naming consistency and clarity
  • Updated all references in agent configurations, service definitions, and skill files

[LOCKhart07]

LGTM. Needs testing especially for the staking interactions