Conversion uri->db-spec is not working as expected

[fdabrao]

Describe the bug
Using uri->db-spec do not convert the user and password to keyword, only to key string.

To Reproduce
Using this uri:
jdbc:postgresql://localhost:59659/********?user=**********&password=**********
result this:

{"user" "******",
  "password" "******",
  :dbtype "postgresql",
  :host "localhost",
  :port 59659,
  :dbname "******"}

Expected behavior

{:user "******",
  :password "******",
  :dbtype "postgresql",
  :host "localhost",
  :port 59659,
  :dbname "******"}

Version: 1.3.858