Limit build concurrency

.circleci/config.yml

@@ -45,7 +45,6 @@ defaults: &defaults
   working_directory: /tmp/material-ui
   docker:
     - image: cimg/node:18.16
-  resource_class: 'medium+'
 
 # CircleCI has disabled the cache across forks for security reasons.
 # Following their official statement, it was a quick solution, they
@@ -248,6 +247,7 @@ jobs:
             git diff --exit-code
   test_types:
     <<: *defaults
+    resource_class: 'medium+'
 
     steps:
       - checkout
@@ -298,6 +298,7 @@ jobs:
             - packages/mui-utils/build
   test_types_next:
     <<: *defaults
+    resource_class: 'medium+'
     steps:
       - checkout
       - run:
@@ -346,6 +347,7 @@ jobs:
             exit 0
   test_browser:
     <<: *defaults
+    resource_class: 'medium+'
     docker:
       - image: mcr.microsoft.com/playwright:v1.33.0-focal
         environment:

package.json

@@ -8,7 +8,7 @@
     "benchmark:browser": "yarn workspace benchmark browser",
     "build:codesandbox": "lerna run --parallel --scope \"@mui/*\" build",
     "release:version": "lerna version --no-changelog --no-push --no-git-tag-version --force-publish=@mui/core-downloads-tracker",
-    "release:build": "lerna run --parallel --scope \"@mui/*\" build",
+    "release:build": "lerna run --concurrency 4 --scope \"@mui/*\" build",
     "release:changelog": "node scripts/releaseChangelog.mjs",
     "release:publish": "lerna publish from-package --dist-tag latest --contents build",
     "release:publish:dry-run": "lerna publish from-package --dist-tag latest --contents build --registry=\"http://localhost:4873/\"",