deps(deps-dev): bump javafx.version from 21.0.2 to 26.0.2

Bumps `javafx.version` from 21.0.2 to 26.0.2.

Updates `org.openjfx:javafx-controls` from 21.0.2 to 26.0.2

Updates `org.openjfx:javafx-swing` from 21.0.2 to 26.0.2

---
updated-dependencies:
- dependency-name: org.openjfx:javafx-controls
  dependency-version: 26.0.2
  dependency-type: direct:development
  update-type: version-update:semver-major
- dependency-name: org.openjfx:javafx-swing
  dependency-version: 26.0.2
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

qa/pom.xml

@@ -43,7 +43,7 @@
         <mockito.version>5.23.0</mockito.version>
         <logback.version>1.5.38</logback.version>
         <pdfbox.version>3.0.8</pdfbox.version>
-        <javafx.version>21.0.2</javafx.version>
+        <javafx.version>26.0.2</javafx.version>
         <!-- ArchUnit for the cross-module boundary guards below. Roughly in step
              with the engine pom's archunit.version; a drift is harmless (test-only,
              each module runs its own test JVM), so it is not version-guarded. -->