build(deps-dev): Bump plausible-tracker from 0.3.8 to 0.3.9

Bumps [plausible-tracker](https://github.com/plausible/plausible-tracker) from 0.3.8 to 0.3.9.
- [Changelog](https://github.com/plausible/plausible-tracker/blob/master/CHANGELOG.md)
- [Commits](https://github.com/plausible/plausible-tracker/commits)

---
updated-dependencies:
- dependency-name: plausible-tracker
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -108,7 +108,7 @@
     "i18next-conv": "^14.1.0",
     "jest-axe": "^8.0.0",
     "jest-when": "^3.6.0",
-    "plausible-tracker": "^0.3.8",
+    "plausible-tracker": "^0.3.9",
     "prettier": "^3.2.5",
     "react-scripts": "^5.0.1",
     "serve": "^14.2.3",