meta: bump piscina from 5.2.0 to 5.3.0 (#976)

Bumps [piscina](https://github.com/piscinajs/piscina) from 5.2.0 to 5.3.0.
- [Release notes](https://github.com/piscinajs/piscina/releases)
- [Changelog](https://github.com/piscinajs/piscina/blob/v5.3.0/CHANGELOG.md)
- [Commits](piscinajs/piscina@v5.2.0...v5.3.0)

---
updated-dependencies:
- dependency-name: piscina
  dependency-version: 5.3.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package-lock.json

@@ -75,7 +75,7 @@
     "hast-util-to-string": "^3.0.1",
     "hastscript": "^9.0.1",
     "mdast-util-slice-markdown": "^2.0.1",
-    "piscina": "^5.2.0",
+    "piscina": "^5.3.0",
     "preact": "^10.29.7",
     "preact-render-to-string": "^6.7.0",
     "reading-time": "^1.5.0",