[9.3] [Security solution] Add Workflows nav item to EASE (#250084)

[stephmilovic]

Backport

This will backport the following commits from main to 9.3:

• [Security solution] Add Workflows nav item to EASE (#250084)

Questions ?

Please refer to the Backport tool documentation

[elasticmachine]

💛 Build succeeded, but was flaky

• Buildkite Build
• Commit: b7d5126

Failed CI Steps

• FTR Configs #1
• FTR Configs #6
• FTR Configs #12
• FTR Configs #13

Test Failures

• [job] [logs] FTR Configs #12 / "before all" hook in "{root}"
• [job] [logs] FTR Configs #13 / Agent Builder converse Conversation Error Handling shows error message when there is an error and allows user to retry
• [job] [logs] FTR Configs #6 / Cloud Security Posture POST /internal/cloud_security_posture/graph Happy flows Enrich graph with entity metadata "before all" hook for "should contain entity data when asset inventory is enabled"

Metrics [docs]

Module Count

Fewer modules leads to a faster build time

id	before	after	diff
securitySolutionServerless	141	142	+1

Page load bundle

Size of the bundles that are downloaded on every page load. Target size is below 100kb

id	before	after	diff
securitySolutionServerless	47.3KB	47.3KB	-4.0B