fix(deps): update dependency pngjs to v7

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
pngjs (source)	6.0.0 -> 7.0.0

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Release Notes

pngjs/pngjs

### [`v7.0.0`](https://togithub.com/pngjs/pngjs/blob/HEAD/CHANGELOG.md#​700---19022023) - BREAKING - Drop support for node 12 (Though nothing incompatible in this release yet) - Switch to a pngjs organisation

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[github-actions[bot]]

:tada: This PR is included in version 3.3.0 :tada:

The release is available on:

• GitHub release
• npm package (@latest dist-tag)

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