ci: Upgrade Yarn to 4.16.0 and update action-npm-publish to v6

.github/workflows/main.yml

@@ -86,6 +86,7 @@ jobs:
     name: Publish release
     permissions:
       contents: write
+      id-token: write
     uses: ./.github/workflows/publish-release.yml
     secrets:
       NPM_TOKEN: ${{ secrets.NPM_TOKEN }}

.github/workflows/publish-release.yml

@@ -4,10 +4,13 @@ on:
   workflow_call:
     secrets:
       NPM_TOKEN:
-        required: true
+        required: false
       SLACK_WEBHOOK_URL:
         required: true
 
+permissions:
+  contents: read
+
 jobs:
   publish-release:
     permissions:
@@ -47,8 +50,7 @@ jobs:
         with:
           name: publish-release-artifacts-${{ github.sha }}
       - name: Dry Run Publish
-        # omit npm-token token to perform dry run publish
-        uses: MetaMask/action-npm-publish@v5
+        uses: MetaMask/action-npm-publish@v6
         with:
           slack-webhook-url: ${{ secrets.SLACK_WEBHOOK_URL }}
           subteam: S042S7RE4AE # @metamask-npm-publishers
@@ -59,6 +61,9 @@ jobs:
     needs: publish-npm-dry-run
     runs-on: ubuntu-latest
     environment: npm-publish
+    permissions:
+      contents: read
+      id-token: write
     steps:
       - name: Checkout and setup environment
         uses: MetaMask/action-checkout-and-setup@v1
@@ -70,10 +75,13 @@ jobs:
         with:
           name: publish-release-artifacts-${{ github.sha }}
       - name: Publish
-        uses: MetaMask/action-npm-publish@v5
+        uses: MetaMask/action-npm-publish@v6
         with:
-          # This `NPM_TOKEN` needs to be manually set per-repository.
-          # Look in the repository settings under "Environments", and set this token in the `npm-publish` environment.
+          # This `NPM_TOKEN` needs to be manually set to publish a package for
+          # the first time only.
+          # Look in the repository settings under "Environments", and set this
+          # token in the `npm-publish` environment, and delete it after the
+          # initial publish.
           npm-token: ${{ secrets.NPM_TOKEN }}
         env:
           SKIP_PREPACK: true

.yarnrc.yml

@@ -1,15 +1,33 @@
+# Allowlist for Git repositories that can be used as dependencies. We set it to
+# an empty array to disallow all Git dependencies, as we don't use any and they
+# can be a security risk.
+approvedGitRepositories: []
+
+compressionLevel: mixed
+
+enableGlobalCache: false
+
 enableScripts: false
 
-enableTelemetry: 0
+enableTelemetry: false
 
 logFilters:
   - code: YN0004
     level: discard
 
 nodeLinker: node-modules
 
+# Configure the NPM minimal age gate to 3 days, meaning packages must be at
+# least 3 days old to be installed.
+npmMinimalAgeGate: 4320 # 3 days (in minutes)
+
+# Override the minimal age gate, allowing certain packages to be installed
+# regardless of their publish age.
+npmPreapprovedPackages:
+  - '@metamask/*'
+  - '@metamask-previews/*'
+  - '@lavamoat/*'
+
 plugins:
   - path: .yarn/plugins/@yarnpkg/plugin-allow-scripts.cjs
     spec: 'https://raw.githubusercontent.com/LavaMoat/LavaMoat/main/packages/yarn-plugin-allow-scripts/bundles/@yarnpkg/plugin-allow-scripts.js'
-
-yarnPath: .yarn/releases/yarn-3.2.4.cjs

package.json

@@ -62,7 +62,7 @@
     "ts-jest": "^28.0.7",
     "typescript": "~4.8.4"
   },
-  "packageManager": "yarn@3.8.5",
+  "packageManager": "yarn@4.16.0",
   "engines": {
     "node": "^18.16 || >=20"
   },