Bump actions/setup-node from 1 to 2 (#1)

* Bump actions/setup-node from 1 to 2.4.0

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 1 to 2.4.0.
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](actions/setup-node@v1...v2.4.0)

---
updated-dependencies:
- dependency-name: actions/setup-node
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

* Update .github/workflows/ci.yml

* Update .github/workflows/fuzz.yml

* Update .github/workflows/ci.yml

* Update ci.yml

* Update fuzz.yml

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Matthieu MOREL <mmorel-35@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -16,8 +16,9 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: Setup Node.js ${{ matrix.node-version }}
-      uses: actions/setup-node@v1
+      uses: actions/setup-node@v2
       with:
+        cache: npm
         node-version: ${{ matrix.node-version }}
 
     - run: npm install -g npm
@@ -35,10 +36,10 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: Setup Node.js
-      uses: actions/setup-node@v1
+      uses: actions/setup-node@v2
       with:
+        cache: npm
         node-version: '14'
     - run: npm install -g npm
     - run: npm ci
     - run: npm run test:browser -- --browsers ${{ matrix.browser }}
-

.github/workflows/fuzz.yml

@@ -15,8 +15,9 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: Setup Node.js
-      uses: actions/setup-node@v1
+      uses: actions/setup-node@v2
       with:
+        cache: npm
         node-version: "16"
 
     - run: npm ci