[hotfix][release] Mark 1.16 as latest stable
[hotfix][release] Mark 1.16 as latest stable

lincoln-lil/flink,apache/flink,apache/flink,lincoln-lil/flink,wwjiang007/flink,apache/flink,apache/flink,wwjiang007/flink,lincoln-lil/flink,wwjiang007/flink,lincoln-lil/flink,lincoln-lil/flink,wwjiang007/flink,wwjiang007/flink,lincoln-lil/flink,apache/flink,apache/flink,wwjiang007/flink,lincoln-lil/flink,apache/flink,wwjiang007/flink