build: Upgrade to Node 20 (#124)

* feat: updated node to v20, update ci workflow

* feat: added lockfile version check workflow

* refactor: updated package-lock along with ci & lockfile version workflows

.github/workflows/ci.yml

@@ -14,12 +14,11 @@ jobs:
     strategy:
       matrix:
         node: [18, 20]
-    continue-on-error: ${{ matrix.node == 20 }}
 
     steps:
     - uses: actions/checkout@v3
     - uses: actions/setup-node@v4
       with:
-        node-version: ${{ matrix.node }}
+        node-version: ${{ env.NODE_VER }}
     - run: npm ci
     - run: npm run lint

.github/workflows/lockfileversion-check.yml

@@ -0,0 +1,13 @@
+#check package-lock file version
+
+name: Lockfile Version check
+
+on:
+  push:
+    branches:
+    - master
+  pull_request:
+
+jobs:
+  version-check:
+    uses: openedx/.github/.github/workflows/lockfileversion-check-v3.yml@master

.nvmrc

@@ -0,0 +1 @@
+20