chore: Add yarn-deduplicate script to deduplicate along with github action (#2900)

* add yarn-deduplicate

* chore: add changeset

* add to postinstall script
Co-authored-by: Will Cory <willcory@Wills-MacBook-Pro.local>
Co-authored-by: Mark Tyneway <mark.tyneway@gmail.com>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

.changeset/yellow-maps-clap.md

+---
+'@eth-optimism/integration-tests': patch
+'@eth-optimism/hardhat-node': patch
+'@eth-optimism/js-builder': patch
+'@eth-optimism/common-ts': patch
+'@eth-optimism/contracts': patch
+'@eth-optimism/contracts-bedrock': patch
+'@eth-optimism/contracts-governance': patch
+'@eth-optimism/contracts-periphery': patch
+'@eth-optimism/core-utils': patch
+'@eth-optimism/data-transport-layer': patch
+'@eth-optimism/drippie-mon': patch
+'@eth-optimism/fault-detector': patch
+'@eth-optimism/hardhat-deploy-config': patch
+'@eth-optimism/integration-tests-bedrock': patch
+'@eth-optimism/message-relayer': patch
+'@eth-optimism/sdk': patch
+---
+
+Deduplicate dependencies

.github/workflows/yarn-dedupe.yml

+name: 'Make sure yarn packages are deduplicated'
+jobs:
+  dedupe:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+      - name: Yarn Deduplicate
+        run: |
+          yarn install --frozen-lockfile
+          yarn run deduplicate:ci

package.json

@@ -37,13 +37,15 @@
   "scripts": {
     "clean": "yarn lerna run clean --parallel",
     "build": "yarn lerna run build",
+    "deduplicate": "yarn yarn-deduplicate",
+    "deduplicate:ci": "yarn yarn-deduplicate --fail",
     "test": "yarn lerna run test --parallel",
     "test:coverage": "yarn lerna run test:coverage --parallel",
     "lint": "yarn lerna run lint",
     "lint:ts:check": "yarn lerna run lint:ts:check",
     "lint:check": "yarn lerna run lint:check",
     "lint:fix": "yarn lerna run lint:fix --parallel",
-    "postinstall": "patch-package",
+    "postinstall": "patch-package && yarn deduplicate",
     "ready": "yarn lint && yarn test",
     "prepare": "husky install",
     "release": "yarn build && yarn changeset publish",
@@ -90,6 +92,7 @@
     "@codechecks/client": "^0.1.11",
     "@ethersproject/abstract-provider": "^5.6.1",
     "@openzeppelin/contracts": "^4.3.2",
-    "@openzeppelin/contracts-upgradeable": "^4.3.2"
+    "@openzeppelin/contracts-upgradeable": "^4.3.2",
+    "yarn-deduplicate": "^5.0.0"
   }
 }