chore: bump node to v20 LTS on all the ci workflows (#536)

Co-authored-by: nd0ut <nd0ut@users.noreply.github.com>

Author: nd0ut

.github/workflows/pages.yml

@@ -9,9 +9,9 @@ jobs:
     steps:
       - name: Checkout 🛎️
         uses: actions/checkout@v3
-      - uses: actions/setup-node@v2
+      - uses: actions/setup-node@v4
         with:
-          node-version: '16'
+          node-version: 20
       - name: Install and Build 🔧
         run: |
           npm i

.github/workflows/shipjs-manual-prepare.yml

@@ -8,9 +8,9 @@ jobs:
         with:
           fetch-depth: 0
           ref: master
-      - uses: actions/setup-node@v2
+      - uses: actions/setup-node@v4
         with:
-          node-version: '16'
+          node-version: 20
       - run: npm ci
       - run: |
           git config --global user.email "github-actions[bot]@users.noreply.github.com"

.github/workflows/shipjs-trigger.yml

@@ -13,9 +13,9 @@ jobs:
         with:
           fetch-depth: 0
           ref:  master
-      - uses: actions/setup-node@v2
+      - uses: actions/setup-node@v4
         with:
-          node-version: '16'
+          node-version: 20
       - run: npm ci
       - run: npx shipjs trigger
         env: