output consistency: add list type

[nrainer-materialize]

Prerequisites

This is based on:

• output consistency: generalize map type structures #27129
• output consistency: add comment field to operations #27128

Commits

1b33e4d output consistency: list type: add type and return spec
47d6757 output consistency: list type: add operation params
16a9019 output consistency: list type: add list values
d3659a7 output consistency: list type: add operations

Nightly

• https://buildkite.com/materialize/nightly/builds/7791 ✅ (failure is unrelated and fixed on main)
• https://buildkite.com/materialize/nightly/builds/7825 ✅

[ggevay]

Should output consistency be run before merging this?

[nrainer-materialize]

Should output consistency be run before merging this?

I had triggered a run (see the PR description), but it is not shown in the checks list because I rebased afterwards. Anyway, it is randomized testing, therefore it definitively does not hurt to do a further run: https://buildkite.com/materialize/nightly/builds/7825