[Schema Inaccuracy] Webhook actions of one event disagree: workflow_run in_progress, review thread resolved/unresolved, review head.label, simple-check-suite deployment

[HardMax71]

Schema Inaccuracy

Some webhook schemas in the 2022-11-28 description on main (c6721f3) describe the same object differently from one action to the next, or leave out a field GitHub's own examples carry. All four were the same at 3cef12e.

1. webhook-workflow-run-in-progress: workflow_run has no display_title, which completed declares and requested requires, and actor, triggering_actor, repository.owner and head_repository.owner have no user_view_type, which both other actions declare. Its conclusion is nullable: true, but the enum has no null, so a validator that follows OAS 3.0.3 rejects conclusion: null, which is what an in-progress run carries. requested lists null in its enum.
2. webhook-pull-request-review-thread-resolved and -unresolved describe the same payload apart from action, but four fields are nullable only in resolved: pull_request.auto_merge.commit_title, pull_request.head.label, pull_request.head.repo and thread.comments[].original_line. head.repo is null once a fork is deleted, and original_line can be null on outdated comments, so unresolved rejects payloads resolved accepts.
3. webhook-pull-request-review-submitted has a nullable pull_request.head.label, while -dismissed and -edited don't. [Schema Inaccuracy] head.label and head.user can be null in pull-request schema #5562 covers head.label being null in pull-request; the review actions should agree with each other.
4. simple-check-suite, which all four check_run webhooks reach through check-run-with-simple-check-suite.check_suite, has no deployment. The description's own check-run-created, check-run-completed and check-run-rerequested examples carry check_run.check_suite.deployment.

Expected

The actions of one event describe the shared objects the same way: display_title, user_view_type and a null conclusion on in_progress; the same nullability on both review-thread actions and on all review actions; and deployment on simple-check-suite.

Reproduction Steps

$ jq -c '.components.schemas["webhook-workflow-run-in-progress"].properties.workflow_run.properties | [has("display_title"), .conclusion.nullable, (.conclusion.enum | index(null))]' api.github.com.2022-11-28.json
[false,true,null]

$ jq -c '.components.schemas["webhook-workflow-run-completed"].properties.workflow_run.properties | [has("display_title"), (.actor.properties | has("user_view_type"))]' api.github.com.2022-11-28.json
[true,true]

$ jq -c '[.components.schemas["webhook-pull-request-review-thread-resolved", "webhook-pull-request-review-thread-unresolved"].properties.pull_request.properties.head.properties.repo.nullable]' api.github.com.2022-11-28.json
[true,null]

$ jq -c '[.components.schemas["webhook-pull-request-review-thread-resolved", "webhook-pull-request-review-thread-unresolved"].properties.thread.properties.comments.items.properties.original_line.nullable]' api.github.com.2022-11-28.json
[true,null]

$ jq -c '[.components.schemas["webhook-pull-request-review-submitted", "webhook-pull-request-review-dismissed", "webhook-pull-request-review-edited"].properties.pull_request.properties.head.properties.label.nullable]' api.github.com.2022-11-28.json
[true,null,null]

$ jq -c '[(.components.schemas["simple-check-suite"].properties | has("deployment")), (.components.examples["check-run-created"].value.check_run.check_suite | has("deployment"))]' api.github.com.2022-11-28.json
[false,true]