EIP7623 - account for floor gas after substracting refunds

[tanishqjasoria]

ref: ethereum/EIPs#9227

Changes

• first substract the refunds and then account for floor gas

Types of changes

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• Bugfix (a non-breaking change that fixes an issue)
• New feature (a non-breaking change that adds functionality)
• Breaking change (a change that causes existing functionality not to work as expected)
• Optimization
• Refactoring
• Documentation update
• Build-related changes
• Other: Description

Testing

Requires testing

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If yes, did you write tests?

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Documentation

Requires documentation update

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Requires explanation in Release Notes

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