Update DESCRIPTION (#762)

align to the latest changes for rtables and tern

# Pull Request

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

Fixes #nnn

Signed-off-by: Joe Zhu <[email protected]>

DESCRIPTION

@@ -47,7 +47,7 @@ Imports:
     teal.logger (>= 0.2.0.9004),
     teal.reporter (>= 0.3.0),
     teal.widgets (>= 0.4.0),
-    tern (>= 0.9.3),
+    tern (>= 0.9.5),
     tibble (>= 2.0.0),
     tidyr (>= 0.8.3),
     tools,
@@ -71,7 +71,7 @@ Suggests:
     pkgload,
     rlang (>= 1.0.0),
     rmarkdown (>= 2.23),
-    rtables (>= 0.6.6),
+    rtables (>= 0.6.8),
     rvest,
     shinytest2,
     sparkline,