chore: bump version to 20 (#1126)

Author: soartec-lab

Diff for: .github/workflows/deploy-doc.yaml

@@ -13,10 +13,10 @@ jobs:
       - uses: actions/checkout@v4
         with:
           fetch-depth: 0
-      - name: Use Node.js 18
+      - name: Use Node.js 20
         uses: actions/setup-node@v4
         with:
-          node-version: 18
+          node-version: 20
       - name: Install Vercel CLI
         run: |
           npm install -g vercel

Diff for: .github/workflows/tests.yaml

@@ -14,7 +14,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest]
-        node-version: [18.x]
+        node-version: [20.x]
     steps:
       - name: Set git to use LF (instead of CRLF on Windows)
         run: |

Diff for: .node-version

@@ -1 +1 @@
-18
+20

Diff for: .nvmrc

@@ -1 +1 @@
-18
+20