Update DESCRIPTION, upversion formatters minimal version to 0.5.9 (#1308

)

# Pull Request

<!--- Replace `#nnn` with your issue link for reference. -->

Fixes #nnn

Signed-off-by: Joe Zhu <joe.zhu@roche.com>

DESCRIPTION

@@ -34,7 +34,7 @@ Imports:
     dplyr (>= 1.0.0),
     emmeans (>= 1.10.4),
     forcats (>= 1.0.0),
-    formatters (>= 0.5.8),
+    formatters (>= 0.5.9),
     ggplot2 (>= 3.5.0),
     grid,
     gridExtra (>= 2.0.0),