[CI] QueryableReservedRolesIT testQueryDeleteOrUpdateReservedRoles failing

[elasticsearchmachine]

Build Scans:

• elasticsearch-periodic-platform-support #5877 / windows-2022_checkpart4_platform-support-windows
• elasticsearch-periodic-platform-support #5831 / windows-2022_checkpart4_platform-support-windows

Reproduction Line:

gradlew ":x-pack:plugin:security:qa:security-basic:javaRestTest" --tests "org.elasticsearch.xpack.security.QueryableReservedRolesIT.testQueryDeleteOrUpdateReservedRoles" -Dtests.seed=F21C6BF518702D9D -Dtests.locale=es-PE -Dtests.timezone=Canada/Eastern -Druntime.java=23

Applicable branches:
main

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

java.lang.AssertionError: 
Expected: is <29>
     but: was <0>

Issue Reasons:

• [main] 2 failures in test testQueryDeleteOrUpdateReservedRoles (0.3% fail rate in 636 executions)
• [main] 2 failures in step windows-2022_checkpart4_platform-support-windows (20.0% fail rate in 10 executions)
• [main] 2 failures in pipeline elasticsearch-periodic-platform-support (20.0% fail rate in 10 executions)

Note:
This issue was created using new test triage automation. Please report issues or feedback to es-delivery.

[elasticsearchmachine]

Pinging @elastic/es-security (Team:Security)