[Schema Inaccuracy] pages-deployment requestBody schema doesn't match example

Open descriptions-next/ghes-3.13/ghes-3.13.json and inspect the requestBody schema and default example at the JSON pointers given in the issue. Compare the corresponding definitions in the listed GHES versions, then align the schema and example so the preview field is represented consistently.

Schema Inaccuracy

At this location, the schema has 4 fields - artifact_url, environment, pages_build_version, oidc_token.

#/paths/~1repos~1{owner}~1{repo}~1pages~1deployments/post/requestBody/content/application~1json/schema

The example here as a fifth field

#/paths/~1repos~1{owner}~1{repo}~1pages~1deployments/post/requestBody/content/application~1json/examples/default/value

          {
            "artifact_url" : "https://downloadcontent/",
            "environment" : "github-pages",
            "oidc_token" : "eyJ0eXAiOiJKV1QiLCJhbGciOiJSUzI1NiIsIng1dCI6IlV2R1h4SUhlY0JFc1JCdEttemUxUEhfUERiVSIsImtpZCI6IjUyRjE5N0M0ODFERTcwMTEyQzQ0MUI0QTlCMzdCNTNDN0ZDRjBEQjUifQ.eyJqdGkiOiJhMWIwNGNjNy0zNzZiLTQ1N2QtOTMzNS05NTY5YmVjZDExYTIiLCJzdWIiOiJyZXBvOnBhcGVyLXNwYS9taW55aTplbnZpcm9ubWVudDpQcm9kdWN0aW9uIiwiYXVkIjoiaHR0cHM6Ly9naXRodWIuY29tL3BhcGVyLXNwYSIsInJlZiI6InJlZnMvaGVhZHMvbWFpbiIsInNoYSI6ImEyODU1MWJmODdiZDk3NTFiMzdiMmM0YjM3M2MxZjU3NjFmYWM2MjYiLCJyZXBvc2l0b3J5IjoicGFwZXItc3BhL21pbnlpIiwicmVwb3NpdG9yeV9vd25lciI6InBhcGVyLXNwYSIsInJ1bl9pZCI6IjE1NDY0NTkzNjQiLCJydW5fbnVtYmVyIjoiMzQiLCJydW5fYXR0ZW1wdCI6IjYiLCJhY3RvciI6IllpTXlzdHkiLCJ3b3JrZmxvdyI6IkNJIiwiaGVhZF9yZWYiOiIiLCJiYXNlX3JlZiI6IiIsImV2ZW50X25hbWUiOiJwdXNoIiwicmVmX3R5cGUiOiJicmFuY2giLCJlbnZpcm9ubWVudCI6IlByb2R1Y3Rpb24iLCJqb2Jfd29ya2Zsb3dfcmVmIjoicGFwZXItc3BhL21pbnlpLy5naXRodWIvd29ya2Zsb3dzL2JsYW5rLnltbEByZWZzL2hlYWRzL21haW4iLCJpc3MiOiJodHRwczovL3Rva2VuLmFjdGlvbnMuZ2l0aHVidXNlcmNvbnRlbnQuY29tIiwibmJmIjoxNjM5MDAwODU2LCJleHAiOjE2MzkwMDE3NTYsImlhdCI6MTYzOTAwMTQ1Nn0.VP8WictbQECKozE2SgvKb2FqJ9hisWsoMkYRTqfBrQfZTCXi5IcFEdgDMB2X7a99C2DeUuTvHh9RMKXLL2a0zg3-Sd7YrO7a2ll2kNlnvyIypcN6AeIc7BxHsTTnZN9Ud_xmEsTrSRGOEKmzCFkULQ6N4zlVD0sidypmXlMemmWEcv_ZHqhioEI_VMp5vwXQurketWH7qX4oDgG4okyYtPrv5RQHbfQcVo9izaPJ_jnsDd0CBA0QOx9InjPidtIkMYQLyUgJy33HLJy86EFNUnAf8UhBQuQi5mAsEpEzBBuKpG3PDiPtYCHOk64JZkZGd5mR888a5sbHRiaF8hm8YA",
            "pages_build_version" : "4fd754f7e594640989b406850d0bc8f06a121251",
            "preview" : false
          }

preview is unexpected.

Expected

Either preview is removed from the example or added to the schema.

Reproduction Steps

This has been observed on

https://github.com/github/rest-api-description/raw/main/descriptions-next/ghes-3.13/ghes-3.13.json

I've checked for this in 3.10, 3.11, 3.12, 3.13, 3.14.