Compatibility with Air-Gap Clusters?

**Description**:
In an air-gap cluster with no internet access, any images `bpfman` attempts to pull would fail due to the lack of connectivity to external repositories. This issue would prevent `bpfman` from functioning properly in such environments.

**Request**:
How can `bpfman` be adapted to work in air-gap environments?

Possible solutions might include:
- Configuring a local image registry.
- Pre-loading necessary images into the cluster.

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No files, tests, or entry points are named. Investigate how the operator pulls bpfman images and evaluate the local registry and image pre-loading options; done means a documented and verified deployment path for a cluster without internet access.

Written by the indexing model from the issue text.