builder: update inspect command parsing

[crazy-max]

follow-up docker/buildx#2268, docker/buildx#1854
related to docker/buildx#2325 (comment)

Since Buildx 0.13, some keys have been renamed for buildx inspect command: https://github.com/docker/buildx/pull/2268/files#diff-201694404c6fd5e0d301670e34752d92835c43f21dc8e59e342b80a26848ec6fR87-R91

Also adds support for docker/buildx#1854 available since Buildx 0.11.

[crazy-max]

ci issue is unrelated: https://github.com/docker/actions-toolkit/actions/runs/8248886389/job/22597083304?pr=276#step:5:111

  ==> Pouring python@3.12--3.12.2_1.ventura.bottle.tar.gz
  Error: The `brew link` step did not complete successfully
  The formula built, but is not symlinked into /usr/local
  Could not symlink bin/2to3
  Target /usr/local/bin/2to3
  already exists. You may want to remove it:
    rm '/usr/local/bin/2to3'