display presence of attestations in docker images --tree

[eunomie]

- What I did

Display a new column in docker images --tree to show the presence of attestations for an image

- How I did it

- How to verify it

$ ./build/docker images --tree
WARNING: This is an experimental feature. The output may change and shouldn't be depended on.
IMAGE ID ATTEST DISK USAGE CONTENT SIZE USED
tangela:local 33d3577a6389 1GB 294MB
└─ linux/arm64 199ad0cfb5c3 ✔ 1GB 294MB
<untagged> 0a4eaa0eecf5 13.6MB 4.09MB
├─ linux/arm64/v8 24ba417e25e7 13.6MB 4.09MB
├─ linux/amd64 eddacbc7e24b 0B 0B
├─ linux/arm/v6 5c7e326e3c8a 0B 0B
├─ linux/arm/v7 fda9b1b812b2 0B 0B
├─ linux/386 fa66aa594ffa 0B 0B
├─ linux/ppc64le a01843eb870e 0B 0B
├─ linux/riscv64 e99a4d9aa9f9 0B 0B
└─ linux/s390x 14da06d3a895 0B 0B
vektra/mockery:v2.43.2 88a21f9bd208 561MB 130MB
├─ linux/arm64 c450823e2b19 561MB 130MB
└─ linux/amd64 a9c46eae5d98 0B 0B
amazon/dynamodb-local:2.2.1 eb8d4a591efd 804MB 239MB
├─ linux/arm64 01cbd040783f ✔ 804MB 239MB
└─ linux/amd64 a5004db87d3e ✔ 0B 0B
ruby:alpine3.19 5f8ec895847b 143MB 43.9MB
├─ linux/arm64/v8 f1e2c53e3770 ✔ 143MB 43.9MB
├─ linux/amd64 7fb43231f1e1 ✔ 0B 0B
├─ linux/arm/v6 f7b2e2fd50ed ✔ 0B 0B
├─ linux/arm/v7 025800f9bca0 ✔ 0B 0B
├─ linux/386 9c5b956f8f0c ✔ 0B 0B
├─ linux/ppc64le 2fa84bcd8876 ✔ 0B 0B
└─ linux/s390x 5917a3eeb9ef ✔ 0B 0B

- Description for the changelog

- A picture of a cute animal (not mandatory but encouraged)

[codecov-commenter]

Codecov Report

❌ Patch coverage is 0% with 9 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
cli/command/image/tree.go	0.00%	9 Missing ⚠️

📢 Thoughts on this report? Let us know!

[felipecruz91]

This is a really good start! I foresee the need of distinguishing what images have:

• SBOM attestation.
• Provenance attestation (and whether it's min or max mode).

We could think about having a -o wide output that dives into the details and adds a few more columns:

SBOM	Provenance
✔	✔ (max)
✔	✔ (min)