ci: limit playwright install to chromium browser only (#28580)

## **Description**

Storybook CI jobs are failing due to the `playwright install` step
timing out due to an AWS issue. We may be able to work around this issue
by reducing the number of browsers we download. We only use chromium, so
this PR limits it to just chromium


[![Open in GitHub
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.circleci/config.yml

@@ -964,7 +964,7 @@ jobs:
           at: .
       - run:
           name: Install Playwright browsers
-          command: yarn exec playwright install
+          command: yarn exec playwright install chromium
       - run:
           name: Test Storybook
           command: yarn test-storybook:ci

package.json

@@ -113,7 +113,7 @@
     "ts-migration:dashboard:watch": "yarn ts-migration:dashboard:build --watch",
     "ts-migration:enumerate": "ts-node development/ts-migration-dashboard/scripts/write-list-of-files-to-convert.ts",
     "test-storybook": "test-storybook -c .storybook",
-    "test-storybook:ci": "concurrently -k -s first -n \"SB,TEST\" -c \"magenta,blue\" \"yarn storybook:build && npx http-server storybook-build --port 6006 \" \"wait-on tcp:6006 && echo 'Build done. Running storybook tests...' && npx playwright install && yarn test-storybook --maxWorkers=2\"",
+    "test-storybook:ci": "concurrently -k -s first -n \"SB,TEST\" -c \"magenta,blue\" \"yarn storybook:build && npx http-server storybook-build --port 6006 \" \"wait-on tcp:6006 && echo 'Build done. Running storybook tests...' && yarn test-storybook --maxWorkers=2\"",
     "githooks:install": "husky install",
     "fitness-functions": "ts-node development/fitness-functions/index.ts",
     "generate-beta-commit": "node ./development/generate-beta-commit.js",