feat(core): improve loading config file

[Mister-Hope]

This improves esbuild config:

1. bundle to correct node version to improve performance
2. add support for import.meta.dirname and import.meta.filename that is avaibable in node21+

[coveralls]

Pull Request Test Coverage Report for Build 11260612441

Details

• 1 of 1 (100.0%) changed or added relevant line in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 71.051%

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Totals
Change from base Build 11109628209:	0.0%
Covered Lines:	638
Relevant Lines:	904

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💛 - Coveralls