Update dependency sourcemap-codec to v1.4.8

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
sourcemap-codec	1.4.4 -> 1.4.8

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Release Notes

Rich-Harris/sourcemap-codec (sourcemap-codec)

### [`v1.4.8`](https://togithub.com/Rich-Harris/sourcemap-codec/blob/HEAD/CHANGELOG.md#148) [Compare Source](https://togithub.com/Rich-Harris/sourcemap-codec/compare/v1.4.7...v1.4.8) - Performance boost ([#​80](https://togithub.com/Rich-Harris/sourcemap-codec/pull/80)) ### [`v1.4.7`](https://togithub.com/Rich-Harris/sourcemap-codec/blob/HEAD/CHANGELOG.md#147) [Compare Source](https://togithub.com/Rich-Harris/sourcemap-codec/compare/394141c1c3c1e67662fe3935bc866c41e922fdfb...v1.4.7) - Include .map files in package ([#​73](https://togithub.com/Rich-Harris/sourcemap-codec/issues/73)) ### [`v1.4.6`](https://togithub.com/Rich-Harris/sourcemap-codec/blob/HEAD/CHANGELOG.md#146) [Compare Source](https://togithub.com/Rich-Harris/sourcemap-codec/compare/v1.4.5...394141c1c3c1e67662fe3935bc866c41e922fdfb) - Use arrays instead of typed arrays ([#​79](https://togithub.com/Rich-Harris/sourcemap-codec/pull/79)) ### [`v1.4.5`](https://togithub.com/Rich-Harris/sourcemap-codec/blob/HEAD/CHANGELOG.md#145) [Compare Source](https://togithub.com/Rich-Harris/sourcemap-codec/compare/v1.4.4...v1.4.5) - Handle overflow cases ([#​78](https://togithub.com/Rich-Harris/sourcemap-codec/pull/78))

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