Konnect URL is invalid when passing --konnect-addr that doesn't contain api.konghq

[healthy-pod]

Example:

deck gateway ping --konnect-addr="https://global.svc.konghq.tech/api" --konnect-token="token-value"
Error: authenticating with Konnect: making HTTP request: Get "https://global.api.konghqhttps//global.svc.konghq.tech/api/v2/organizations/me": dial tcp: lookup global.api.konghqhttps on 10.0.0.2:53: no such host

Notice the invalid URL value: https://global.api.konghqhttps//global.svc.konghq.tech/api/v2/organizations/me.

@johnharris85 dug and noticed that the function assumes the Konnect API URL is always going to include the string api.konghq and does string manipulation based on that [1].

Internal slack thread: https://kongstrong.slack.com/archives/C04349E4KRC/p1736367550831169

Acceptance Criteria

• Replace https://(us|eu|au|in|me) with https://global rather than looking for api.konghq