dayjs ctor casts string ID value into Date now or Date with 8590 year...

**Describe the bug**
I have value: any;
It cointains string '859100000000000001'.
Calling dayjs(value).isValid() returns true. The cause of proble, that dayjs parsed it as:

I suppose bug in the parseDate method. Fiddle example where it returns new Date() for this value:
https://jsfiddle.net/c83kadq2/1/

**Expected behavior**
dayjs('859100000000000001').isValid() returns false.

**Information**
- Day.js Version ^1.11.5
- OS: Windows 10 21H2
- Browser Microsoft Edge Version 111.0.1661.44
- Time zone: GMT+1 Prague

Start by reproducing the linked JSFiddle for dayjs('859100000000000001') and inspect the parseDate method. Confirm that the value is currently treated as a valid Date, then verify that isValid() returns false for this input without changing normal date parsing.

Written by the indexing model from the issue text.