Fix invalid-for-Postgres date in spec
Fix invalid-for-Postgres date in spec

+ Date.new => Mon, 01 Jan -4712
+ Mon, 01 Jan -4712 =>  PG::DatetimeFieldOverflow: ERROR:  date out of range

studentinsights/studentinsights,erose/studentinsights,erose/studentinsights,jhilde/studentinsights,studentinsights/studentinsights,studentinsights/studentinsights,studentinsights/studentinsights,erose/studentinsights,jhilde/studentinsights,jhilde/studentinsights,erose/studentinsights,jhilde/studentinsights