`formatDateTime(..., '%C')` returns wrong value when date is outwith normal range
```
SELECT formatDateTime(toDateTime64('1935-12-12 12:12:12', 0, 'Europe/Moscow'), '%C')

┌─formatDateTime(toDateTime64('1935-12-12 12:12:12', 0, 'Europe/Moscow'), '%C')─┐
│ 20                                                                            │
└───────────────────────────────────────────────────────────────────────────────┘


SELECT formatDateTime(toDateTime64('1969-12-12 12:12:12', 0, 'Europe/Moscow'), '%C')

┌─formatDateTime(toDateTime64('1969-12-12 12:12:12', 0, 'Europe/Moscow'), '%C')─┐
│ 21                                                                            │
└───────────────────────────────────────────────────────────────────────────────┘

SELECT formatDateTime(toDateTime64('2200-12-12 12:12:12', 0, 'Europe/Moscow'), '%C')

┌─formatDateTime(toDateTime64('2200-12-12 12:12:12', 0, 'Europe/Moscow'), '%C')─┐
│ 20                                                                            │
└───────────────────────────────────────────────────────────────────────────────┘


```

ClickHouse version 21.5.1.6463 (official build).
readTextWithSizeSuffix(T & x, ReadBuffer & buf) { readText(x, buf); }
template <typename T>
inline std::enable_if_t<is_integer_v<T>, void>
readTextWithSizeSuffix(T & x, ReadBuffer & buf)
{
    readIntText(x, buf);
    if (buf.eof())
        return;
    
    auto finish = [&buf, &x] (UInt64 base, int power_of_two) mutable
    {
        ++buf.position();
        if (buf.eof())
        {
            x *= base; 
        }
        else if (*buf.position() == 'i')
        {
            x = (x << power_of_two); 
            ++buf.position();
        }
        return;
    };
    switch (*buf.position())
    {
        case 'k': [[fallthrough]];
        case 'K':
            finish(1000, 10);
            break;