Bump com.miglayout:miglayout-swing from 11.3 to 11.4 in /jskat-swing-gui

Bumps [com.miglayout:miglayout-swing](https://github.com/mikaelgrev/miglayout) from 11.3 to 11.4.
- [Release notes](https://github.com/mikaelgrev/miglayout/releases)
- [Changelog](https://github.com/mikaelgrev/miglayout/blob/master/release.txt)
- [Commits](mikaelgrev/miglayout@v11.3...v11.4)

---
updated-dependencies:
- dependency-name: com.miglayout:miglayout-swing
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

jskat-swing-gui/build.gradle.kts

@@ -7,7 +7,7 @@ plugins {
 dependencies {
     implementation(project(":jskat-base"))
 
-    implementation("com.miglayout:miglayout-swing:11.3")
+    implementation("com.miglayout:miglayout-swing:11.4")
 }
 
 javafx {