Bump flowless from 0.6.3 to 0.6.4 (#7903)

Bumps [flowless](https://github.com/FXMisc/Flowless) from 0.6.3 to 0.6.4.
- [Release notes](https://github.com/FXMisc/Flowless/releases)
- [Changelog](https://github.com/FXMisc/Flowless/blob/master/CHANGELOG.md)
- [Commits](FXMisc/Flowless@v0.6.3...v0.6.4)

---
updated-dependencies:
- dependency-name: org.fxmisc.flowless:flowless
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

build.gradle

@@ -173,7 +173,7 @@ dependencies {
     implementation 'de.saxsys:mvvmfx-validation:1.9.0-SNAPSHOT'
     implementation 'de.saxsys:mvvmfx:1.8.0'
     implementation 'com.tobiasdiez:easybind:2.2'
-    implementation 'org.fxmisc.flowless:flowless:0.6.3'
+    implementation 'org.fxmisc.flowless:flowless:0.6.4'
     implementation 'org.fxmisc.richtext:richtextfx:0.10.6'
     implementation group: 'org.glassfish.hk2.external', name: 'jakarta.inject', version: '2.6.1'
     implementation 'com.jfoenix:jfoenix:9.0.10'