chore: made chainConfig files match testnet configuration

[Torres-ssf]

Summary

This PR updates the chainConfig files in our tests to align with the latest testnet upgrade, ensuring consistency across the testing environment. The gasCosts new values resulted in expressively reduced transaction fees, requiring some fine-tuning of a few tests.

Checklist

• All changes are covered by tests (or not applicable)
• All changes are documented (or not applicable)
• I reviewed the entire PR myself (preferably, on GH UI)
• I described all Breaking Changes (or there's none)

[maschad]

Nice work @Torres-ssf , I assume you are using this config just a few questions about the discrepancies

[petertonysmith94]

Nice one @Torres-ssf.

I think it'd be worth documenting this process - which could then serve as a basis of automating down the line.

[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
create-fuels-counter-example	❌ Failed (Inspect)			Aug 27, 2024 1:18am
create-fuels-template-preview	❌ Failed (Inspect)			Aug 27, 2024 1:18am

[github-actions]

Coverage Report:

Lines	Branches	Functions	Statements
79.42%(+0%)	71.82%(+0.03%)	77.7%(-0.14%)	79.55%(+0%)

Changed Files:

Ok	File (✨=New File)	Lines	Branches	Functions	Statements
🔴	packages/abi-coder/src/utils/transpile-abi.ts	100% (+2.64%)	91.66% (+4.16%)	94.11% (+0%)	97.72% (+2.27%)
🔴	packages/account/src/connectors/fuel.ts	95.39% (-1.16%)	90.66% (+1.33%)	88.88% (-6.35%)	95.56% (-1.12%)
🔴	packages/account/src/providers/transaction-request/transaction-request.ts	88.48% (+0%)	78.26% (-1.45%)	84% (+0%)	88.73% (+0%)