ci: drop support for Node@18

Author: UlisesGascon

.github/workflows/pr-test.yml

@@ -14,7 +14,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest, macOS-latest]
-        node-version: [18.x, 20.x, 22.x, 24.x]
+        node-version: [20.x, 22.x, 24.x]
       fail-fast: false
 
     steps: