allowing to specify percentage-based factors (like 1.125 for 112.5%)

[TemirlanBasitov]

Description

Please include a summary of the changes and be sure to follow our Contribution Guidelines.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• I have selected the correct base branch.
• I have performed a self-review of my own code.
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• I have made corresponding changes to the documentation.
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[jdevcs]

Thanks @TemirlanBasitov I'll suggest to also add few examples and short description in above documentation comments so with this PR merge it will update docs website. https://docs.web3js.org/libdocs/Web3Eth#calculatefeedata

[TemirlanBasitov]

@jdevcs where i can add comment and short description here?

[TemirlanBasitov]

I adjusted description of method with examples in the web3_eth.ts
Here also short explanation:

calculateFeeData method now supports both bigint and number types for the baseFeePerGasFactor parameter. If a number is provided, it will be converted to a bigint with three decimal precision. This allows for more flexible calculations when dealing with decimal values.

Ex:
await calculateFeeData(BigInt(2));
// baseFeePerGasFactor remains as 2n

await calculateFeeData(1.5);
// baseFeePerGasFactor is converted to BigInt(1.500) for precise calculations

These changes make the method more versatile while ensuring backward compatibility with previous bigint usage.

[jdevcs]

@TemirlanBasitov PR looks good, you just need to fix Conflicting file CHANGELOG.md, thanks,