v2-0-5 Tornado Cash Spell, Source Freshness Fix and dex.trades optimization

What's Changed

• Tornado cash abstractions edits by @dot2dotseurat in #1412
• Dex trades performance by @aalan3 in #1454
• OP2 v1 - Create update_decoded_contracts.sql by @MSilb7 in #1447
• Modify sources.yml files to avoid source freshness errors by @soispoke in #1453

Full Changelog: v2-0-4...v2-0-5