change node version to 20

the initial v16 was causing merge conflicts

.github/workflows/tests.yaml

@@ -4,6 +4,7 @@ on:
   push:
     branches:
       - '*'
+
 jobs:
   build:
     runs-on: ubuntu-latest
@@ -15,7 +16,7 @@ jobs:
       - name: Set up Node.js
         uses: actions/setup-node@v2
         with:
-          node-version: '16'  # Use Node.js 16.x 
+          node-version: '20'  
 
       - name: Install pnpm
         run: npm install -g pnpm
@@ -30,4 +31,4 @@ jobs:
         run: pnpm run lint
 
       - name: Test Build
-        run: pnpm run build
+        run: pnpm run build