[9.1] [Synthetics] Import Synthetics e2e tests (#233698)

[kibanamachine]

Backport

This will backport the following commits from main to 9.1:

• [Synthetics] Import Synthetics e2e tests (#233698)

Questions ?

Please refer to the Backport tool documentation

[elasticmachine]

Pinging @elastic/obs-ux-management-team (Team:obs-ux-management)

[elasticmachine]

💚 Build Succeeded

• Buildkite Build
• Commit: e89810c

Metrics [docs]

Saved Objects .kibana field count

Every field in each saved object type adds overhead to Elasticsearch. Kibana needs to keep the total field count below Elasticsearch's default limit of 1000 fields. Only specify field mappings for the fields you wish to search on or query. See https://www.elastic.co/guide/en/kibana/master/saved-objects-service.html#_mappings

id	before	after	diff
_data_stream_timestamp	1	-	-1
_doc_count	1	-	-1
_ignored_source	1	-	-1
_index_mode	1	-	-1
_inference_fields	1	-	-1
_tier	1	-	-1
apm-custom-dashboards	5	-	-5
apm-server-schema	2	-	-2
apm-service-group	5	-	-5
application_usage_daily	2	-	-2
config	2	-	-2
config-global	2	-	-2
coreMigrationVersion	1	-	-1
created_at	1	-	-1
created_by	1	-	-1
entity-definition	9	-	-9
entity-discovery-api-key	2	-	-2
event_loop_delays_daily	2	-	-2
favorites	4	-	-4
file	11	-	-11
file-upload-usage-collection-telemetry	3	-	-3
fileShare	5	-	-5
guided-onboarding-guide-state	3	-	-3
infra-custom-dashboards	4	-	-4
infrastructure-monitoring-log-view	2	-	-2
intercept_trigger_record	5	-	-5
legacy-url-alias	7	-	-7
managed	1	-	-1
ml-job	6	-	-6
ml-module	13	-	-13
ml-trained-model	7	-	-7
monitoring-telemetry	2	-	-2
namespace	1	-	-1
namespaces	1	-	-1
observability-onboarding-state	2	-	-2
originId	1	-	-1
product-doc-install-status	7	-	-7
references	4	-	-4
sample-data-telemetry	3	-	-3
security-ai-prompt	8	-	-8
slo	11	-	-11
space	5	-	-5
synthetics-monitor	34	-	-34
synthetics-monitor-multi-space	34	-	-34
tag	4	-	-4
type	1	-	-1
typeMigrationVersion	1	-	-1
ui-metric	2	-	-2
updated_at	1	-	-1
updated_by	1	-	-1
upgrade-assistant-ml-upgrade-operation	3	-	-3
upgrade-assistant-reindex-operation	3	-	-3
uptime-synthetics-api-key	2	-	-2
url	5	-	-5
usage-counters	2	-	-2
total			-249

cc @cesco-f