enh: add skullduggery

[miltoncamacho]

Add a BIDS compatible and robust population specific defacing tool.

See https://github.com/UNFmontreal/skullduggery by @bpinsard

[gemini-code-assist]

Code Review

This pull request adds a new Singularity recipe for bids-skullduggery version 0.0.2. The reviewer noted that using the :main tag for the base image compromises reproducibility and recommended pinning it to a specific version tag.

[gemini-code-assist]

Using the :main tag for the base image in a versioned recipe (0.0.2) compromises reproducibility. If the main branch of the source repository is updated, subsequent builds of this Singularity image will contain different code, breaking the versioning contract. It is recommended to pin this to a specific version tag (e.g., :0.0.2) or a specific image digest.

From: ghcr.io/unfmontreal/skullduggery:0.0.2

[yarikoptic]

correct, filed

• tag released containers UNFmontreal/skullduggery#55

but also

• Check/fixup/extend support for building from other docker registries #160