chore: Remove Node.js version 18 from CI workflow matrix for streamlined testing

Author: jordyfontoura

.github/workflows/ci.yml

@@ -72,7 +72,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        node-version: [18, 20, 22]
+        node-version: [20, 22]
 
     steps:
       - name: Checkout repository