chore(lockfile): update dependency @sanity/assist to v1.2.9 (#5031)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

yarn.lock

@@ -3871,9 +3871,9 @@
   integrity sha512-uyIOtGA4Duf+68I3BSbYHY5P+WGftn3QtNJD2Pn7h9WPGYsSrWViIPebE9yRN8N0NHhYj+hDQXaMpVdjG7r+zA==
 
 "@sanity/assist@^1.0.8":
-  version "1.1.1"
-  resolved "https://registry.yarnpkg.com/@sanity/assist/-/assist-1.1.1.tgz#92202d6d220afafa772c7a04ca89b1ad87dd0b90"
-  integrity sha512-pU7QpvldQALxLln0bNh5Gqk63ybtppgGYmxvuZHyvP4jfkqT1rloanHJYX6wQLfKojMN57Eo2kJ1jBJfEFnccA==
+  version "1.2.9"
+  resolved "https://registry.yarnpkg.com/@sanity/assist/-/assist-1.2.9.tgz#d9826d51eaada17b6df335b439fa2c435f09384c"
+  integrity sha512-/ITzJ/iwBCHB9AhVM2fo7/Sj1xGktvWvNuuQF4atxqUsczM/oiA9k8dd1+HjqutCRCaVOj4/a+ejea6ZJNJNAg==
   dependencies:
     "@sanity/icons" "^2.4.0"
     "@sanity/incompatible-plugin" "^1.0.4"