build(deps-dev): bump gettext-extractor from 3.5.4 to 3.8.0

Bumps [gettext-extractor](https://github.com/lukasgeiter/gettext-extractor) from 3.5.4 to 3.8.0.
- [Release notes](https://github.com/lukasgeiter/gettext-extractor/releases)
- [Commits](https://github.com/lukasgeiter/gettext-extractor/compare/v3.5.4...v3.8.0)

---
updated-dependencies:
- dependency-name: gettext-extractor
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -48,7 +48,7 @@
     "eslint-import-resolver-typescript": "^3.5.2",
     "eslint-plugin-import": "^2.27.5",
     "file-loader": "^6.2.0",
-    "gettext-extractor": "^3.5.4",
+    "gettext-extractor": "^3.8.0",
     "graceful-fs": "^4.2.10",
     "html-loader": "4.2.0",
     "json-loader": "^0.5.7",