Bump com.formdev:flatlaf-extras from 3.5.2 to 3.5.4

Bumps [com.formdev:flatlaf-extras](https://github.com/JFormDesigner/FlatLaf) from 3.5.2 to 3.5.4.
- [Release notes](https://github.com/JFormDesigner/FlatLaf/releases)
- [Changelog](https://github.com/JFormDesigner/FlatLaf/blob/main/CHANGELOG.md)
- [Commits](JFormDesigner/FlatLaf@3.5.2...3.5.4)

---
updated-dependencies:
- dependency-name: com.formdev:flatlaf-extras
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

build.gradle

@@ -76,7 +76,7 @@ dependencies {
 
     include "com.google.code.gson:gson:2.11.0"
     include "com.formdev:flatlaf:3.5.2"
-    include "com.formdev:flatlaf-extras:3.5.2"
+    include "com.formdev:flatlaf-extras:3.5.4"
     include "org.apache.commons:commons-lang3:3.17.0"
     include "commons-io:commons-io:2.18.0"
     include "net.sf.jopt-simple:jopt-simple:5.0.4"