Bump node version also for premerge

Author: cortinico

.github/workflows/pre-merge.yml

@@ -35,7 +35,7 @@ jobs:
       - name: Setup Node
         uses: actions/setup-node@v3
         with:
-          node-version: 18
+          node-version: 20.19.4
 
       - name: Setup Gradle
         uses: gradle/gradle-build-action@v2
@@ -61,7 +61,7 @@ jobs:
       - name: Setup Node
         uses: actions/setup-node@v3
         with:
-          node-version: 18
+          node-version: 20.19.4
 
       - name: Setup XCode
         uses: maxim-lobanov/setup-xcode@v1