[Detection Engine][Cypress] Reenable and reorganize some detection_al…

…erts and data_sources tests (#168426)

## Summary

#### Code update:
`/detection_engine/routes/signals/set_alert_tags_route.ts`
- When enabling the alert tags cypress test, noticed it was failing as
the tag updates did not show in the UI until a few seconds later upon a
second refresh. I was able to recreate this locally on serverless, not
on ESS. I updated the alerts tag route to include `refresh: true` and
that seemed to fix this issue.
- `/detection_engine/routes/signals/open_close_signals_route.ts`
- When testing on serverless, alert status was stale after update.
Confirmed this with tests that were failing for ESS. Upon updating route
to use `refresh: true`, tests began passing and could see expected
behavior. This may make the call a bit heavier so we will want to see if
there are any performance impacts.

.buildkite/pipelines/pull_request/base.yml

@@ -63,7 +63,7 @@ steps:
       queue: n2-4-spot
     depends_on: build
     timeout_in_minutes: 60
-    parallelism: 2
+    parallelism: 4
     retry:
       automatic:
         - exit_status: '*'

.github/CODEOWNERS

@@ -1159,6 +1159,7 @@ x-pack/plugins/cloud_integrations/cloud_full_story/server/config.ts @elastic/kib
 /x-pack/plugins/security_solution/common/types/timeline @elastic/security-threat-hunting-investigations
 
 /x-pack/test/security_solution_cypress/cypress/e2e/investigations @elastic/security-threat-hunting-investigations
+/x-pack/test/security_solution_cypress/cypress/e2e/sourcerer/sourcerer_timeline.cy.ts @elastic/security-threat-hunting-investigations
 
 /x-pack/plugins/security_solution/public/common/components/alerts_viewer @elastic/security-threat-hunting-investigations
 /x-pack/plugins/security_solution/public/detections/components/alerts_table/timeline_action @elastic/security-threat-hunting-investigations
@@ -1297,8 +1298,8 @@ x-pack/plugins/cloud_integrations/cloud_full_story/server/config.ts @elastic/kib
 /x-pack/plugins/security_solution/server/lib/detection_engine/routes/signals @elastic/security-detection-engine
 /x-pack/plugins/security_solution/server/lib/sourcerer @elastic/security-detection-engine
 
-/x-pack/test/security_solution_cypress/cypress/e2e/data_sources @elastic/security-detection-engine
-/x-pack/test/security_solution_cypress/cypress/e2e/detection_alerts @elastic/security-detection-engine
+/x-pack/test/security_solution_cypress/cypress/e2e/detection_response/sourcerer @elastic/security-detection-engine
+/x-pack/test/security_solution_cypress/cypress/e2e/detection_response/detection_alerts @elastic/security-detection-engine
 /x-pack/test/security_solution_cypress/cypress/e2e/detection_response/rule_actions @elastic/security-detection-engine
 /x-pack/test/security_solution_cypress/cypress/e2e/detection_response/rule_creation @elastic/security-detection-engine
 /x-pack/test/security_solution_cypress/cypress/e2e/detection_response/rule_edit @elastic/security-detection-engine

x-pack/plugins/security_solution/server/lib/detection_engine/routes/signals/open_close_signals_route.ts

@@ -131,7 +131,7 @@ const updateSignalsStatusByIds = async (
 ) =>
   esClient.updateByQuery({
     index: `${DEFAULT_ALERTS_INDEX}-${spaceId}`,
-    refresh: false,
+    refresh: true,
     body: {
       script: getUpdateSignalStatusScript(status),
       query: {
@@ -158,7 +158,7 @@ const updateSignalsStatusByQuery = async (
   esClient.updateByQuery({
     index: `${DEFAULT_ALERTS_INDEX}-${spaceId}`,
     conflicts: options.conflicts,
-    refresh: false,
+    refresh: true,
     body: {
       script: getUpdateSignalStatusScript(status),
       query: {

x-pack/plugins/security_solution/server/lib/detection_engine/routes/signals/set_alert_tags_route.ts

@@ -100,7 +100,7 @@ export const setAlertTagsRoute = (router: SecuritySolutionPluginRouter) => {
         try {
           const body = await esClient.updateByQuery({
             index: `${DEFAULT_ALERTS_INDEX}-${spaceId}`,
-            refresh: false,
+            refresh: true,
             body: {
               script: painlessScript,
               query: {