Update to upstream @floating-ui/core@1.6.9 (#88)

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

Author: github-actions[bot]

upstream.toml

@@ -1,5 +1,5 @@
 [releases]
-core = "1.6.8"
+core = "1.6.9"
 dom = "1.6.12"
 utils = "0.2.9"
 vue = "1.1.5"