PANOS_LOGGING environment variable does not support osx_curl

[freedge]

Describe the bug

PANOS_LOGGING environment variable does not support osx_curl

Expected behavior

it should be possible to activate osx_curl logging with

PANOS_LOGGING=osx_curl

Current behavior

Error: Unknown logging requested: osx_curl

Possible solution

add more logging options in https://github.com/PaloAltoNetworks/pango/blob/dba4c1566648dbf17471e4cae313d7ebe1846b68/client.go#L1356-L1377

or use the "logging" argument in the provider block

Steps to reproduce

1. export PANOS_LOGGING=osx_curl
2. terraform apply

Screenshots

Context

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