Bump preact from 10.6.5 to 10.6.6 in /build/javascript (#1737)

Bumps [preact](https://github.com/preactjs/preact) from 10.6.5 to 10.6.6.
- [Release notes](https://github.com/preactjs/preact/releases)
- [Commits](https://github.com/preactjs/preact/compare/10.6.5...10.6.6)

---
updated-dependencies:
- dependency-name: preact
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

build/javascript/package.json

@@ -9,7 +9,7 @@
     "htm": "^3.1.0",
     "mark.js": "^8.11.1",
     "micromodal": "^0.4.10",
-    "preact": "10.6.5",
+    "preact": "10.6.6",
     "tailwindcss": "^1.9.6",
     "video.js": "7.17.0"
   },