fix(deps): update dependency iso-639-1 to v2.1.15

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
iso-639-1	2.1.13 -> 2.1.15

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Release Notes

meikidd/iso-639-1

### [`v2.1.15`](https://togithub.com/meikidd/iso-639-1/blob/HEAD/CHANGELOG.md#v2115) [Compare Source](https://togithub.com/meikidd/iso-639-1/compare/v2.1.14...v2.1.15) - Change parameters type "LanguageCode" to "string" ### [`v2.1.14`](https://togithub.com/meikidd/iso-639-1/blob/HEAD/CHANGELOG.md#v2114) [Compare Source](https://togithub.com/meikidd/iso-639-1/compare/v2.1.13...v2.1.14) - Bump async from 2.6.0 to 2.6.4 [#​53](https://togithub.com/meikidd/iso-639-1/pull/53) - Add a type to list the langage codes in the TS definition file [#​55](https://togithub.com/meikidd/iso-639-1/pull/55)

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