fix: OpenAPI validation

[aldur]

Description

While I was poking around the RPC endpoints, I noticed that:

1. We do not currently lint/validate the OpenAPI definition.
2. As a result, it was broken.
3. Plus, it included endpoints that were previously removed and/or changed path (v2 to v3). This is a known issue, see Applicable issues below.

This PR takes a small step into improving things, by:

• Removing an outdated action (which now lives in the actions repository).
• Removing non-existing endpoints.
• Ensuring the definition validate with a bare minimum set of rules (see below).

Applicable issues

• Partial improvement to [Docs] Complete documentation of the node RPC-API #4551, but a lot still needs to be done.

Checklist

Manually lint as follows:

npx @redocly/[email protected] lint --extends minimal docs/rpc/openapi.yaml

Then try generating the HTML:

npx @redocly/[email protected] build-docs -o /tmp/open-api-docs.html ./docs/rpc/openapi.yaml

• Required documentation changes (e.g., docs/rpc/openapi.yaml and rpc-endpoints.md for v2 endpoints, event-dispatcher.md for new events)

[wileyj]

this contains some changes from the 2.5.0.0.7 branch. can you rebase from that branch? target to develop is fine (after release, a PR is opened from release branch back to develop ).

the latest release branch is release/2.5.0.0.7

disregard, it's the signer branch - we can deal with any conflicts later

[wileyj]

lgtm

[blockstack-devops]

This pull request has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.