always silence retryable client logging

[sami-alajrami]

with v2.6.11, adding --debug causes duplicate logging with inconsistent formatting:

$ kosli list flows --debug 

[debug] processing config file [/Users/samialajrami/.kosli.yml]
[debug] using api token from [/Users/samialajrami/.kosli.yml].
2025/02/18 10:59:14 [DEBUG] GET https://app.kosli.com/api/v2/flows/kosli <==== this is duplicate and has a different format
[debug] request made to https://app.kosli.com/api/v2/flows/kosli and got status 200

without the duplicate logging, this is what it looks on a retry call:

$ kosli list flows --debug 

[debug] processing config file [/Users/samialajrami/.kosli.yml]
[debug] using api token from [/Users/samialajrami/.kosli.yml].
Error: Get "http://localhost/api/v2/flows/kosli": GET http://localhost/api/v2/flows/kosli giving up after 4 attempt(s)

which indicates that 4 attempts happened and failed