Add PPC64 architecture computation resource to the Allocator

[jnasselle]

Description

Based on https://github.com/wazuh/wazuh-jenkins/issues/6751 requirements, it's needed to add PPC support on the allocator (migrated from wazuh-qa to wazuh-virtual-machines as stated here )

Constraints

• PPC computational resources are currently short of disk space and building concurrency could lead to an unstable system because of it.

[jnasselle]

Update

@c-bordon pointed out that this feature is currently implemented in wazuh/wazuh-qa#5085.

These systems can be used with the following composite names:

• linux-debian-9-ppc64
• linux-centos-7-ppc64

Regarding the constraint, only two instances for each one can be executed simultaneously. If more instances are requested, the next error is raised

raise ValueError(f"ppc64 server has full capacity, cannot host a new container")