toDate/toDateTime give incorrect result for date before 1970-01-01

**Describe the bug**
A clear and concise description of what works not as it is supposed to.
SELECT toDate('1970-01-02')

┌─toDate('1970-01-02')─┐
│           1970-01-02 │
└──────────────────────┘


SELECT toDate('1918-01-02')

┌─toDate('1918-01-02')─┐
│           1970-01-01 │
└──────────────────────┘

**How to reproduce**
* Which ClickHouse server version to use
20.8.5.45