pgcli couldn't parse password that contained character '#'

I have a section that contains character '#' in ~/.pg_service.conf, like
```
[staging_instance]
host=XXXX
port=5432
dbname=postgres
user=root
password=abc#123
```

using psql could login successfully
```
~# psql service=staging_instance
psql (13.20, server 15.12)
WARNING: psql major version 13, server major version 15.
Some psql features might not work.
Type "help" for help.

postgres=>
```

but using pgcli still prompt input password
```
~# pgcli service=staging_instance
Password for root:
```

How could solve this?

Reproduce the issue with the shown ~/.pg_service.conf entry and the `pgcli service=staging_instance` command, then compare its password parsing with the successful `psql service=staging_instance` path. Done means a password containing `#` is read from the service file and pgcli connects without prompting.

Written by the indexing model from the issue text.