chore: reintroduce pretest at top level

Author: trivikr

package.json

@@ -17,6 +17,7 @@
     "build:smithy-client": "yarn build:crypto-dependencies && lerna run --scope '@aws-sdk/client-rds-data' --include-dependencies pretest",
     "build:all": "yarn build:crypto-dependencies && lerna run build",
     "build-documentation": "yarn remove-documentation && typedoc",
+    "pretest:all": "yarn build:all",
     "test:all": "jest --coverage --passWithNoTests && lerna run test --scope '@aws-sdk/{fetch-http-handler,hash-blob-browser}'",
     "test:functional": "jest --config tests/functional/jest.config.js --passWithNoTests",
     "test:integration-legacy": "cucumber-js --fail-fast",