APM integration is broken in E2E tests with 8.12.0-snapshot.

[naemono]

See elastic/apm-server#12239, elastic/apm-server#12150, elastic/apm-server#12240

In our current nightly e2e tests with 8.12.0-snapshot we are seeing this error in APM tests:

{"log.level":"error","@timestamp":"2023-12-17T22:15:39.969Z","log.logger":"beater","log.origin":{"function":"github.com/elastic/apm-server/internal/beater.waitReady","file.name":"beater/waitready.go","file.line":63},"message":"precondition 'apm integration installed' failed: error checking Elasticsearch index template setup: status: 403, failed: [security_exception], reason: action [indices:admin/data_stream/create] is unauthorized for user [e2e-lkeiy-mercury-es-naming-rvxm-apm-xxxxxxxxxxxxxxxxx-apm-user] with effective roles [apm_system,eck_apm_user_role_v87] on indices [traces-apm-default], this action is granted by the index privileges [create_index,manage,all]: to remediate, please install the apm integration: https://ela.st/apm-integration-quickstart","service.name":"apm-server","ecs.version":"1.6.0"}

Currently all APM e2e tests are failing with this issue. The fix is merged, and should begin resolving itself. This should be closed after verification is done.

[naemono]

Verified resolved.