Verifpal 0.20.1

Verifpal 0.20.1 fixes a serious bug that prevented attackers from learning values with the `password` qualifiers even when leaked directly. Definitely update.

Thanks to "Mike" for reporting this bug.

Changelog

6a679cef Brew formula update for verifpal version v0.20.0
f93d08a6 Check for unknown constants in query preconditions
df617bb2 Fix attacker not learning password values even when leaked
37f4ba5b Fix missing keywords in PEG parser definition
b8731d39 Improve parser error handling
231df638 Scoop update for verifpal version v0.20.0
42eaa03d Update go.sum
fb6a5df3 Verifpal 0.20.1