Bump WPFLocalizeExtension from 3.9.2 to 3.9.4
Bump WPFLocalizeExtension from 3.9.2 to 3.9.4

Bumps [WPFLocalizeExtension](https://github.com/XAMLMarkupExtensions/WPFLocalizationExtension) from 3.9.2 to 3.9.4.
- [Release notes](https://github.com/XAMLMarkupExtensions/WPFLocalizationExtension/releases)
- [Commits](https://github.com/XAMLMarkupExtensions/WPFLocalizationExtension/compare/3.9.2...3.9.4)

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

Signed-off-by: dependabot[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@github.com>
y-iihoshi/ThScoreFileConverter,y-iihoshi/ThScoreFileConverter