chore(deps): update dependency io_bazel_stardoc to v0.5.3

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
io_bazel_stardoc	http_archive	patch	0.5.2 -> 0.5.3

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Release Notes

bazelbuild/stardoc

### [`v0.5.3`](https://togithub.com/bazelbuild/stardoc/blob/HEAD/CHANGELOG.md#Release-053) [Compare Source](https://togithub.com/bazelbuild/stardoc/compare/0.5.2...0.5.3) Bugfix release: fixes angle bracket escaping and a crash on labels with `@@​` **Contributors** Alexandre Rostovtsev, Jon Shea

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