IONOS_API_URL not working since v6.6.4

[maxbischoff]

Description

When using ionosctl v6.6.4 or newer (tested up until 6.6.8), the IONOS_API_URL environment variable does not seem to be used anymore.
Instead of accessing the api endpoint configured this way, the variable is ignored and the default value used.

Expected behavior

I expect the environment variable IONOS_API_URL to define the API endpoint accessed by ionosctl, similar to the --api-url / -u flag.

Environment

Ionosctl version:

6.6.4 (and newer)

OS:

darwin/arm64

Shell:

zsh

How to Reproduce

1. Set up ionosctl for normal API access, e.g. by exporting the IONOS_USERNAME and IONOS_PASSWORD env variables
2. Verify that API access works using ionosctl dc list
3. Set export IONOS_API_URL=doesnt.exist or a similar url that should not work
4. Run ionosctl dc list. Observe that the same result as in step 2 is obtained.
5. (optional) run ionosctl -u $IONOS_API_URL dc list and observe an error

[avirtopeanu-ionos]

Hey, thanks for opening this issue, PR #350 should fix this