Postgres - Change createdb/dropdb CLI commands to SQL statements

Hi everyone.

when i run the command:
```bash
HANAMI_ENV=test bundle exec hanami db create
```
I get error:
```
bundler: failed to load command: hanami (/builds/fake/vendor/ruby/ruby/3.3.0/bin/hanami)
/usr/local/lib/ruby/3.3.0/open3.rb:534:in `spawn': No such file or directory - createdb (Errno::ENOENT)
from /usr/local/lib/ruby/3.3.0/open3.rb:534:in `popen_run'
from /usr/local/lib/ruby/3.3.0/open3.rb:235:in `popen3'
from /builds/fake/vendor/ruby/ruby/3.3.0/gems/hanami-cli-2.2.1/lib/hanami/cli/system_call.rb:94:in `block in call'
from /builds/fake/vendor/ruby/ruby/3.3.0/gems/bundler-2.5.23/lib/bundler.rb:413:in `block in with_unbundled_env'
```
It works normally in development but in gitlab ci it crashes. I can't find the problem

As I understand it is related to createdb util that can't be found