quality(apidocs): document shortid lookup using drf spectacular (#94829)

Part of
https://www.notion.so/sentry/Remove-legacy-API-docs-JSON-21d8b10e4b5d80958c87ee7d603853ff?source=copy_link

Author: JoshFerge

api-docs/openapi.json

@@ -100,9 +100,6 @@
     "/api/0/organizations/{organization_id_or_slug}/repos/{repo_id}/commits/": {
       "$ref": "paths/organizations/repo-commits.json"
     },
-    "/api/0/organizations/{organization_id_or_slug}/shortids/{issue_id}/": {
-      "$ref": "paths/organizations/shortid.json"
-    },
     "/api/0/projects/": {
       "$ref": "paths/projects/index.json"
     },