fix(ci): use node 20 (#23)

Author: bjohansebas

.github/workflows/build.yml

@@ -11,7 +11,6 @@ permissions:
   pages: write
   id-token: write
 
-
 concurrency:
   group: "pages"
   cancel-in-progress: false
@@ -29,7 +28,7 @@ jobs:
       uses: actions/configure-pages@v5
     - uses: actions/setup-node@v4
       with:
-        node-version: 12
+        node-version: 20
     - uses: actions/cache@v4
       id: cache
       with: