I tested starting spicedb with this args ` datastore conn ur

Question

I tested starting spicedb with this args ` datastore conn uri= postgres postgres password localhost 5432 spicedb sslmode=disable plan cache mode=ffff` It gave me this error ``` Server error FATAL invalid value for parameter plan cache mode ffff SQLSTATE 22024 ``` But when i pass it with valid value like this ``` datastore conn uri= postgres postgres password localhost 5432 spicedb sslmode=disable plan cache mode=force custom plan` ``` Spicedb starts without complaining I m guessing pgx took the settings