feat: upgraded to node v18, added .nvmrc and updated workflows

.github/workflows/ci.yml

@@ -9,19 +9,18 @@ on:
 jobs:
   test:
     runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        node: [16]
 
     steps:
     - name: Checkout
       uses: actions/checkout@v3
       with:
         fetch-depth: 0
+    - name: Setup Nodejs Env
+      run: echo "NODE_VER=`cat .nvmrc`" >> $GITHUB_ENV
     - name: Setup Nodejs
       uses: actions/setup-node@v3
       with:
-        node-version: ${{ matrix.node }}
+        node-version: ${{ env.NODE_VER }}
     - name: Install dependencies
       run: npm ci
     - name: 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

@@ -1 +1 @@
-16.20.0
+18