fix: doc-freshness-check REPO_DIR path after move to scripts/verify/

Author: majiayu000

scripts/verify/doc-freshness-check.sh

@@ -10,7 +10,7 @@
 
 set -euo pipefail
 
-REPO_DIR="$(cd "$(dirname "$0")/.." && pwd)"
+REPO_DIR="$(cd "$(dirname "$0")/../.." && pwd)"
 STRICT=false
 
 for arg in "$@"; do