chore: update node versions

Author: tugcekucukoglu

.github/workflows/nightly.yml

@@ -15,7 +15,7 @@ jobs:
 
         strategy:
             matrix:
-                node-version: [18, 20]
+                node-version: [20, 22, 24]
 
         steps:
             - name: Checkout repository

.github/workflows/pr-checker.yml

@@ -30,7 +30,7 @@ jobs:
                   version: 9.6.0
             - uses: actions/setup-node@v4
               with:
-                  node-version: 18
+                  node-version: 20
                   cache: 'pnpm'
 
             - name: Install packages