fix: postgreSQL version spec (#4301)

* fix(cli): log error in `init zitadel`

* docs: specify postgres version

Co-authored-by: Livio Spring <livio.a@gmail.com>

cmd/initialise/verify_grant.go

@@ -17,7 +17,7 @@ func newGrant() *cobra.Command {
 		Long: `Sets ALL grant to the database user.
 
 Prereqesits:
-- cockroachdb
+- cockroachDB or postgreSQL
 `,
 		Run: func(cmd *cobra.Command, args []string) {
 			config := MustNewConfig(viper.New())