Fix: instance create crn is none when when giving --crn-hash or --crn…

[1yam]

In aleph instance create:

aleph-client/src/aleph_client/commands/instance/__init__.py

Line 542 in f61e497

if crn and crn_info:

This comparaison is wrong since crn is only used when finding a specific crn on the crn list:
and crn_info is set

aleph-client/src/aleph_client/commands/instance/__init__.py

Line 500 in f61e497

crn_info = CRNInfo.from_unsanitized_input(crn)

So we should only ensure crn_info is set but not crn, since if we select a crn using the UI crn_url and crn_hash is None and crn is then None

Changes

This pull request makes small adjustments to the logic for determining pricing entities and requirements when creating an instance in src/aleph_client/commands/instance/__init__.py. The changes simplify conditional checks and improve code clarity.

Pricing entity selection:

• The conditional logic for selecting the correct PricingEntity based on GPU and premium options has been refactored for improved readability.

Requirements initialization:

• The check for initializing requirements and related variables now only depends on crn_info instead of both crn and crn_info, streamlining the condition.

How to test

create a payg or credit or confidential instance