feat: upgraded to node v18, added .nvmrc and updated workflows (#26)

## Ticket
[Upgrade Node Js from 16 to
18](#27)

## Description
- Added support for node v18, updated .nvmrc and workflows.

.github/workflows/ci.yml

@@ -11,17 +11,17 @@ on:
 jobs:
   tests:
     runs-on: ubuntu-20.04
-    strategy:
-      matrix:
-        node: [16]
     steps:
     - name: Checkout
       uses: actions/checkout@v2
 
+    - name: Setup Nodejs Env
+      run: echo "NODE_VER=`cat .nvmrc`" >> $GITHUB_ENV
+
     - name: Setup Nodejs
       uses: actions/setup-node@v1
       with:
-        node-version: ${{ matrix.node }}
+        node-version: ${{ env.NODE_VER }}
 
     - name: Install dependencies
       run: npm ci

.github/workflows/lockfileversion-check.yml

@@ -10,4 +10,4 @@ on:
 
 jobs:
   version-check:
-    uses: openedx/.github/.github/workflows/lockfileversion-check.yml@master
+    uses: openedx/.github/.github/workflows/lockfileversion-check-v3.yml@master

.github/workflows/release.yml

@@ -12,13 +12,15 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0
+      - name: Setup Nodejs Env
+        run: echo "NODE_VER=`cat .nvmrc`" >> $GITHUB_ENV
       - name: Setup Node.js
-        uses: actions/setup-node@v2
+        uses: actions/setup-node@v3
         with:
-          node-version: 16
+          node-version: ${{ env.NODE_VER }}
       - name: Install dependencies
         run: npm i
       - name: Test

.nvmrc

@@ -0,0 +1 @@
+18