Failing test: X-Pack Fleet API Integration Tests.x-pack/test/fleet_api_integration/apis/policy_secrets·ts - Fleet Endpoints fleet policy secrets "after each" hook for "should store new secrets after package upgrade"

[kibanamachine]

A test failed on a tracked branch

Error: expected 200 "OK", got 400 "Bad Request"
    at cleanupPolicies (policy_secrets.ts:92:12)
    at processTicksAndRejections (node:internal/process/task_queues:95:5)
    at Context.<anonymous> (policy_secrets.ts:396:7)
    at Object.apply (wrap_function.js:74:16)
----
    at Test._assertStatus (node_modules/supertest/lib/test.js:252:14)
    at /opt/buildkite-agent/builds/bk-agent-prod-gcp-1726600857589051462/elastic/kibana-on-merge/kibana/node_modules/supertest/lib/test.js:308:13
    at Test._assertFunction (node_modules/supertest/lib/test.js:285:13)
    at Test.assert (node_modules/supertest/lib/test.js:164:23)
    at localAssert (node_modules/supertest/lib/test.js:120:14)
    at fn (node_modules/supertest/lib/test.js:125:7)
    at Test.callback (node_modules/superagent/src/node/index.js:899:3)
    at fn (node_modules/superagent/src/node/index.js:1165:18)
    at IncomingMessage.<anonymous> (node_modules/superagent/src/node/parsers/json.js:19:7)
    at IncomingMessage.emit (node:events:531:35)
    at endReadableNT (node:internal/streams/readable:1696:12)
    at processTicksAndRejections (node:internal/process/task_queues:82:21)

First failure: kibana-on-merge - main

[elasticmachine]

Pinging @elastic/fleet (Team:Fleet)