parsing passwords fails on %

[robert-sjoblom]

Describe the Bug

This is related to #1242, where the password is shown in the error message.

Steps to Reproduce

Connect to a database with a password containing %:

failed to create new migrations: failed to open database: parse "pgx://postgres:foo%!h(bool=true)ejsan2%!t(MISSING)jotjo@localhost:5432/postgres?sslmode=disable&application_name=&statement_cache_mode=describe&x-lock-strategy=table&x-multi-statement=%!t(MISSING)": invalid URL escape "%!h"

password: foo%hejsan2%tjotjo

Expected Behavior
A properly parsed password

Migrate Version
v4.18.2

[dhui]

https://github.com/golang-migrate/migrate#database-urls