[CI][workflows] use node 20 by default

Prepare for node.js 18 EoL and transition to node 20 as default

- start using node 20 for jobs like linting, publishing and license
  check
- Add Node 20 and node 22 to the matrix for "build and test" job
- (for now) Keep node 18 as part of the "matrix" for "build and test
  job". We can remove it once officially EoL

The plan is to remove node 18 soon, when it's officially EoL.

Signed-off-by: Marc Dumais <marc.dumais@ericsson.com>

.github/workflows/ci-cd.yml

@@ -14,24 +14,25 @@ on:
 
 jobs:
   build:
+    name: Build and Test (${{ matrix.os }}, node-${{ matrix.node-version }})
     runs-on: ${{ matrix.os }}
 
     strategy:
       fail-fast: false
       matrix:
         os: [ubuntu-latest]
-        node: [18]
+        node-version: [18, 20, 22]
 
     steps:
       - name: Checkout
         uses: actions/checkout@v4
         with:
           persist-credentials: false
 
-      - name: Use Node.js ${{ matrix.node }}
+      - name: Use Node.js ${{ matrix.node-version }}
         uses: actions/setup-node@v4
         with:
-          node-version: ${{ matrix.node }}
+          node-version: ${{ matrix.node-version }}
           registry-url: 'https://registry.npmjs.org'
 
       - name: Build
@@ -50,25 +51,27 @@ jobs:
           NODE_OPTIONS: "--max_old_space_size=4096"
 
   publish-next:
+    name: Publish to npm (next)
     needs: build
     if: github.ref == 'refs/heads/master' && github.event_name == 'push' && github.repository == 'eclipse-cdt-cloud/timeline-chart'
 
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
 
     strategy:
       matrix:
-        node: [18]
+        os: [ubuntu-latest]
+        node-version: [20]
 
     steps:
       - name: Checkout
         uses: actions/checkout@v4
         with:
           persist-credentials: false
 
-      - name: Use Node.js ${{ matrix.node }}
+      - name: Use Node.js ${{ matrix.node-version}}
         uses: actions/setup-node@v4
         with:
-          node-version: ${{ matrix.node }}
+          node-version: ${{ matrix.node-version }}
           registry-url: 'https://registry.npmjs.org'
 
       - name: Pre-Publish 
@@ -91,21 +94,23 @@ jobs:
           NODE_AUTH_TOKEN: ${{ secrets.NPM_AUTH_TOKEN }} # The variable name comes from here: /~https://github.com/actions/setup-node/blob/70b9252472eee7495c93bb1588261539c3c2b98d/src/authutil.ts#L48
 
   publish-latest:
+    name: Publish to npm (latest)
     needs: build
     if: github.event_name == 'release' && startsWith(github.ref, 'refs/tags/v') && github.repository == 'eclipse-cdt-cloud/timeline-chart'
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        node: [18]
+        os: [ubuntu-latest]
+        node-version: [20]
     steps:
       - name: Checkout
         uses: actions/checkout@v3
         with:
           persist-credentials: false
-      - name: Use Node.js ${{ matrix.node }}
+      - name: Use Node.js ${{ matrix.node-version }}
         uses: actions/setup-node@v3
         with:
-          node-version: ${{ matrix.node }}
+          node-version: ${{ matrix.node-version }}
           registry-url: 'https://registry.npmjs.org'
       - name: Pre-Publish 
         shell: bash

.github/workflows/license-check-workflow.yml

@@ -14,13 +14,13 @@ on:
 jobs:
 
   License-check:
-    name: 3PP License Check using dash-licenses
+    name: 3PP License Check using dash-licenses (${{ matrix.os }})
 
     strategy:
       fail-fast: false
       matrix:
         os: [ubuntu-latest]
-        node: [18]
+        node-version: [20]
         java: [11]
 
     runs-on: ${{ matrix.os }}
@@ -35,7 +35,7 @@ jobs:
       - name: Use Node.js ${{ matrix.node }}
         uses: actions/setup-node@v4
         with:
-          node-version: ${{ matrix.node }}
+          node-version: ${{ matrix.node-version }}
 
       - name: Use Java ${{ matrix.java }}
         uses: actions/setup-java@v3