Update CI to use actions/setup-node@v4 and remove EOL Node 14.x

Author: codexcommunion

.github/workflows/ci.yml

@@ -14,13 +14,13 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [14.x, 16.x, 18.x, 20.x]
+        node-version: [16.x, 18.x, 20.x]
 
     steps:
     - uses: actions/checkout@v3
 
     - name: Use Node.js ${{ matrix.node-version }}
-      uses: actions/setup-node@v3
+      uses: actions/setup-node@v4
       with:
         node-version: ${{ matrix.node-version }}
         cache: 'npm'
@@ -60,7 +60,7 @@ jobs:
     - uses: actions/checkout@v3
 
     - name: Use Node.js 18
-      uses: actions/setup-node@v3
+      uses: actions/setup-node@v4
       with:
         node-version: 18
         cache: 'npm'
@@ -91,7 +91,7 @@ jobs:
     - uses: actions/checkout@v3
 
     - name: Use Node.js 18
-      uses: actions/setup-node@v3
+      uses: actions/setup-node@v4
       with:
         node-version: 18
         cache: 'npm'