Use release/arrow/KEYS for verification

Author: kou

dev/release/verify_rc.sh

@@ -34,7 +34,7 @@ set -x
 VERSION="$1"
 RC="$2"
 
-ARROW_DIST_BASE_URL="https://dist.apache.org/repos/dist/dev/arrow"
+ARROW_DIST_BASE_URL="https://dist.apache.org/repos/dist/release/arrow"
 DOWNLOAD_RC_BASE_URL="https://github.com/apache/arrow-java/releases/download/v${VERSION}-rc${RC}"
 ARCHIVE_BASE_NAME="apache-arrow-java-${VERSION}"