Update buildpack-deps
Update buildpack-deps

Changes:

- https://github.com/docker-library/buildpack-deps/commit/51a2871: Remove EOL disco

docker-solr/official-images,thresheek/official-images,docker-solr/official-images,dinogun/official-images,thresheek/official-images,docker-solr/official-images,docker-library/official-images,31z4/official-images,infosiftr/stackbrew,docker-solr/official-images,dinogun/official-images,thresheek/official-images,infosiftr/stackbrew,docker-library/official-images,neo-technology/docker-official-images,docker-library/official-images,thresheek/official-images,docker-solr/official-images,thresheek/official-images,infosiftr/stackbrew,infosiftr/stackbrew,docker-solr/official-images,infosiftr/stackbrew,infosiftr/stackbrew,infosiftr/stackbrew,infosiftr/stackbrew,31z4/official-images,31z4/official-images,docker-solr/official-images,dinogun/official-images,docker-solr/official-images,31z4/official-images,31z4/official-images,infosiftr/stackbrew,31z4/official-images,dinogun/official-images,dinogun/official-images,neo-technology/docker-official-images,infosiftr/stackbrew,dinogun/official-images,dinogun/official-images,dinogun/official-images,thresheek/official-images,docker-library/official-images,neo-technology/docker-official-images,thresheek/official-images,neo-technology/docker-official-images,infosiftr/stackbrew,31z4/official-images,infosiftr/stackbrew,31z4/official-images,docker-library/official-images,dinogun/official-images,infosiftr/stackbrew,31z4/official-images,dinogun/official-images,docker-library/official-images,infosiftr/stackbrew,docker-solr/official-images,31z4/official-images,31z4/official-images,docker-library/official-images,docker-library/official-images,docker-solr/official-images,thresheek/official-images,thresheek/official-images,docker-library/official-images,docker-solr/official-images,31z4/official-images,neo-technology/docker-official-images,neo-technology/docker-official-images,neo-technology/docker-official-images,31z4/official-images,neo-technology/docker-official-images,neo-technology/docker-official-images,thresheek/official-images,docker-library/official-images,docker-solr/official-images,docker-solr/official-images,neo-technology/docker-official-images,docker-library/official-images,thresheek/official-images,dinogun/official-images,neo-technology/docker-official-images,docker-library/official-images,docker-library/official-images,dinogun/official-images,docker-solr/official-images,docker-library/official-images,neo-technology/docker-official-images,31z4/official-images,thresheek/official-images,neo-technology/docker-official-images,thresheek/official-images,dinogun/official-images,neo-technology/docker-official-images,thresheek/official-images