upgrade node@20, regenrate lock, workflows/v6

Author: cschetan77

.github/actions/build/action.yml

@@ -12,7 +12,7 @@ runs:
 
   steps:
     - name: Setup Node
-      uses: actions/setup-node@v3
+      uses: actions/setup-node@v6
       with:
         node-version: ${{ inputs.node }}
         cache: npm

.github/actions/npm-publish/action.yml

@@ -15,10 +15,10 @@ runs:
 
   steps:
     - name: Checkout code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
 
     - name: Setup Node
-      uses: actions/setup-node@v4
+      uses: actions/setup-node@v6
       with:
         node-version: ${{ inputs.node-version }}
         cache: 'npm'

.github/workflows/matrix.json

@@ -1,7 +1,6 @@
 {
   "include": [
-    { "node": "18" },
-    { "node": "16" },
-    { "node": "14" }
+    { "node": "22" },
+    { "node": "20" }
   ]
 }

.github/workflows/test.yml

@@ -74,7 +74,7 @@ jobs:
       - run: npm run test:ci
 
       # only upload coverage on one node version
-      - if: matrix.node == 18
+      - if: matrix.node == 20
         uses: codecov/codecov-action@671740ac38dd9b0130fbe1cec585b89eea48d3de # pin@5.5.2
 
   lint:
@@ -88,7 +88,7 @@ jobs:
 
       - uses: actions/setup-node@v6
         with:
-          node-version: 18
+          node-version: 20
           cache: npm