Spec version is out of date with what the api allows

[myinisjap]

Description

Current api spec is not accurate with what is available https://api.slack.com/methods

What type of issue is this? (place an x in one of the [ ])

• bug
• enhancement (feature request)
• question
• documentation related
• testing related
• discussion

Requirements (place an x in each of the [ ])

• I've read and understood the Contributing guidelines and have done my best effort to follow them.
• I've read and agree to the Code of Conduct.
• I've searched for any related issues and avoided creating a duplicate issue.

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Bug Report

The current spec seems to be out of date and has the wrong method types.
An example is views.open is showing as a GET call even though it is a POST call
https://github.com/slackapi/slack-api-specs/blob/master/web-api/slack_web_openapi_v2.json#L26465-L26499

Can we please get the spec updated to the latest version

Expected result:

The api spec would be up to date with what the api has.

Actual result:

Spec causes requests to fail.