kubevirt / hyperconverged-cluster-operator / 14307216217

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mutator: default evictionStrategy to None on ARM64 clusters (#3380)

- Ensure that newly created HyperConverged resources default to
EvictionStrategyNone when all worker nodes in the cluster are
ARM64. This prevents unexpected live migrations on architectures
where it may not be supported. The mutation only applies if the
eviction strategy is unset, allowing users to override it later.

- Update unit tests to verify evictionStrategy defaults based on
node architecture. Test cases now cover all-ARM64 clusters (None),
mixed or non-ARM64 clusters with high availability (LiveMigrate),
and user overrides, ensuring accurate mutation behavior.

Signed-off-by: Daniel Sionov <dsionov@redhat.com>

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