[CI] Decrease number of Jest workers

Signed-off-by: Tyler Smalley <[email protected]>

Author: Tyler Smalley

.ci/teamcity/oss/jest.sh

@@ -10,4 +10,4 @@ source "$(dirname "${0}")/../util.sh"
 export JOB=kibana-oss-jest
 
 checks-reporter-with-killswitch "Jest Unit Tests" \
-  node scripts/jest --ci --verbose
+  node scripts/jest --ci --maxWorkers=5 --verbose

.ci/teamcity/tests/jest.sh

@@ -7,4 +7,4 @@ source "$(dirname "${0}")/../util.sh"
 export JOB=kibana-jest
 
 checks-reporter-with-killswitch "Jest Unit Tests" \
-  node scripts/jest --ci --verbose --coverage
+  node scripts/jest --ci --maxWorkers=5 --verbose

test/scripts/test/jest_unit.sh

@@ -3,4 +3,4 @@
 source src/dev/ci_setup/setup_env.sh
 
 checks-reporter-with-killswitch "Jest Unit Tests" \
-  node scripts/jest --ci --verbose --maxWorkers=10 --coverage
+  node scripts/jest --ci --verbose --maxWorkers=6 --coverage