ci: speed up lint workflow with hoisting (open-telemetry#648)

Co-authored-by: Valentin Marchaud <contact@vmarchaud.fr>

.github/workflows/lint.yml

@@ -33,6 +33,6 @@ jobs:
         if: steps.cache.outputs.cache-hit != 'true'
         run: |
           npm install --only=dev --ignore-scripts
-          npx lerna bootstrap --no-ci --ignore-scripts -- --only=dev
+          npx lerna bootstrap --no-ci --hoist --nohoist='zone.js' --ignore-scripts -- --only=dev
       - name: Lint
         run: npm run lint