chore(deps): update node.js to v21.7.3

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
node	final	patch	21.7.2-alpine -> 21.7.3-alpine
node	stage	patch	21.7.2-alpine -> 21.7.3-alpine

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Release Notes

nodejs/node (node)

### [`v21.7.3`](https://togithub.com/nodejs/node/compare/v21.7.2...v21.7.3) [Compare Source](https://togithub.com/nodejs/node/compare/v21.7.2...v21.7.3)

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