[cypress/security_solution] Rebalance parallelism (#205452)

Mainly to address timeouts on [Investigations - Security Solution
Cypress Tests
#2](https://buildkite.com/elastic/kibana-on-merge/builds/58405#01942904-03f4-406a-856d-d1f24d6fd533)
but made a pass on all groups.

Timings were based on the on-merge pipeline
https://buildkite.com/elastic/kibana-on-merge.

.buildkite/pipelines/chrome_forward_testing.yml

@@ -97,7 +97,7 @@ steps:
     depends_on:
       - build
     timeout_in_minutes: 60
-    parallelism: 8
+    parallelism: 10
     retry:
       automatic:
         - exit_status: '-1'
@@ -153,7 +153,7 @@ steps:
     depends_on:
       - build
     timeout_in_minutes: 60
-    parallelism: 6
+    parallelism: 2
     retry:
       automatic:
         - exit_status: '-1'
@@ -181,7 +181,7 @@ steps:
     depends_on:
       - build
     timeout_in_minutes: 60
-    parallelism: 6
+    parallelism: 4
     retry:
       automatic:
         - exit_status: '-1'
@@ -209,7 +209,7 @@ steps:
     depends_on:
       - build
     timeout_in_minutes: 60
-    parallelism: 6
+    parallelism: 3
     retry:
       automatic:
         - exit_status: '-1'
@@ -265,7 +265,7 @@ steps:
     depends_on:
       - build
     timeout_in_minutes: 60
-    parallelism: 2
+    parallelism: 3
     retry:
       automatic:
         - exit_status: '-1'
@@ -279,7 +279,7 @@ steps:
     depends_on:
       - build
     timeout_in_minutes: 60
-    parallelism: 6
+    parallelism: 8
     retry:
       automatic:
         - exit_status: '-1'

.buildkite/pipelines/es_serverless/verify_es_serverless_image.yml

@@ -107,7 +107,7 @@ steps:
           preemptible: true
         depends_on: build
         timeout_in_minutes: 60
-        parallelism: 8
+        parallelism: 10
         retry:
           automatic:
             - exit_status: "-1"
@@ -175,7 +175,7 @@ steps:
           preemptible: true
         depends_on: build
         timeout_in_minutes: 60
-        parallelism: 2
+        parallelism: 4
         retry:
           automatic:
             - exit_status: "-1"

.buildkite/pipelines/on_merge.yml

@@ -218,7 +218,7 @@ steps:
       machineType: n2-standard-4
       preemptible: true
     timeout_in_minutes: 60
-    parallelism: 8
+    parallelism: 10
     retry:
       automatic:
         - exit_status: '-1'
@@ -278,7 +278,7 @@ steps:
       machineType: n2-standard-4
       preemptible: true
     timeout_in_minutes: 60
-    parallelism: 6
+    parallelism: 2
     retry:
       automatic:
         - exit_status: '-1'
@@ -308,7 +308,7 @@ steps:
       machineType: n2-standard-4
       preemptible: true
     timeout_in_minutes: 60
-    parallelism: 6
+    parallelism: 4
     retry:
       automatic:
         - exit_status: '-1'
@@ -338,7 +338,7 @@ steps:
       machineType: n2-standard-4
       preemptible: true
     timeout_in_minutes: 60
-    parallelism: 6
+    parallelism: 3
     retry:
       automatic:
         - exit_status: '-1'
@@ -398,7 +398,7 @@ steps:
       machineType: n2-standard-4
       preemptible: true
     timeout_in_minutes: 60
-    parallelism: 2
+    parallelism: 3
     retry:
       automatic:
         - exit_status: '-1'
@@ -413,7 +413,7 @@ steps:
       machineType: n2-standard-4
       preemptible: true
     timeout_in_minutes: 60
-    parallelism: 6
+    parallelism: 8
     retry:
       automatic:
         - exit_status: '-1'

.buildkite/pipelines/pointer_compression.yml

@@ -94,7 +94,7 @@ steps:
     depends_on:
       - build
     timeout_in_minutes: 60
-    parallelism: 8
+    parallelism: 10
     retry:
       automatic:
         - exit_status: '-1'
@@ -162,7 +162,7 @@ steps:
     depends_on:
       - build
     timeout_in_minutes: 60
-    parallelism: 6
+    parallelism: 2
     retry:
       automatic:
         - exit_status: '-1'
@@ -196,7 +196,7 @@ steps:
     depends_on:
       - build
     timeout_in_minutes: 60
-    parallelism: 6
+    parallelism: 4
     retry:
       automatic:
         - exit_status: '-1'
@@ -230,7 +230,7 @@ steps:
     depends_on:
       - build
     timeout_in_minutes: 60
-    parallelism: 6
+    parallelism: 3
     retry:
       automatic:
         - exit_status: '-1'
@@ -298,7 +298,7 @@ steps:
     depends_on:
       - build
     timeout_in_minutes: 60
-    parallelism: 2
+    parallelism: 3
     retry:
       automatic:
         - exit_status: '-1'
@@ -315,7 +315,7 @@ steps:
     depends_on:
       - build
     timeout_in_minutes: 60
-    parallelism: 6
+    parallelism: 8
     retry:
       automatic:
         - exit_status: '-1'

.buildkite/pipelines/pull_request/security_solution/detection_engine.yml

@@ -33,7 +33,7 @@ steps:
       - check_types
       - check_oas_snapshot
     timeout_in_minutes: 60
-    parallelism: 2
+    parallelism: 4
     retry:
       automatic:
         - exit_status: '-1'
@@ -73,7 +73,7 @@ steps:
       - check_types
       - check_oas_snapshot
     timeout_in_minutes: 60
-    parallelism: 2
+    parallelism: 3
     retry:
       automatic:
         - exit_status: '-1'

.buildkite/pipelines/pull_request/security_solution/explore.yml

@@ -13,7 +13,7 @@ steps:
       - check_types
       - check_oas_snapshot
     timeout_in_minutes: 60
-    parallelism: 2
+    parallelism: 3
     retry:
       automatic:
         - exit_status: '-1'

.buildkite/pipelines/pull_request/security_solution/investigations.yml

@@ -13,7 +13,7 @@ steps:
       - check_types
       - check_oas_snapshot
     timeout_in_minutes: 60
-    parallelism: 7
+    parallelism: 8
     retry:
       automatic:
         - exit_status: '-1'
@@ -33,7 +33,7 @@ steps:
       - check_types
       - check_oas_snapshot
     timeout_in_minutes: 60
-    parallelism: 8
+    parallelism: 10
     retry:
       automatic:
         - exit_status: '-1'