chore(deps): bump org.jfree:jfreechart from 1.5.3 to 1.5.6

[dependabot]

Bumps org.jfree:jfreechart from 1.5.3 to 1.5.6.

Release notes

Sourced from org.jfree:jfreechart's releases.

JFreeChart 1.5.6

Version 1.5.6 (21 May 2025)

• added setSymbols method to SymbolAxis (#421)
• added label padding to Crosshair (#414)
• add clearSeriesXXX methods for all series settings in AbstractRenderer (#364)
• fix calculating if label fits inside bar for XYBarRenderer (#366)
• set default background paint to LIGHT_GRAY (#324)
• deprecated all classes in org.jfree.chart.servlet.* (#385)
• updated pom.xml with new Maven publishing flow and latest plugin versions
• various minor improvements

JFreeChart 1.5.5

Version 1.5.5 (23 June 2024)

• added XYBezierRenderer by Javier Robes (#286)
• fix cross-hair painting (#340)
• parameter range check for CompassPlot (#397)

Note: some (supposed) security vulnerabilities have been reported for v1.5.4:

• CVE-2023-52070 : an ArrayIndexOutOfBoundsException in CompassPlot
  No fix is considered necessary, however (#397) has been applied.

• CVE-2024-22949 : a possible NullPointerException in CategoryLineAnnotation
  No fix is considered necessary.

• CVE-2024-23076 : a possible NullPointerException in BubbleXYItemLabelGenerator
  No fix is considered necessary.

JFreeChart 1.5.4

Version 1.5.4 (8 January 2023)

• add new methods to access maps for datasets, renderers and axes in plots (#201);
• add option to truncate item labels and compute contrast colors (PR #225)
• add new annotations (PR #226)
• add new panel for background rendering of charts (PR #233)
• fix tick label font for LogAxis with number format override (#98);
• added valueVisible flag to MeterPlot (#231);
• added get/setWebFillAlpha() methods to SpiderWebPlot (#279)
• add argument checks for annotations (#223);
• removed JFreeChartResources.java file (#239)

Commits

• 703427c Update pom.xml for release
• 0465f3c Clean up Javadocs
• 9bbbc71 Clean up Javadocs
• 987eb97 Make JavaDoc output quiet
• bdab500 Cleanup Javadocs
• aed7419 Update README for release
• dfee0b5 Cleanup
• 20bbace Deprecated classes in the org.jfree.chart.servlet package
• 3f7841a Fix warnings in JFreeChart class
• 432fc04 Cleanup
• Additional commits viewable in compare view

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