drop support for node EOL node 18

Author: joeferner

.github/workflows/master.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        nodeVersion: [ 18, 20, 22 ]
+        nodeVersion: [ 20, 22 ]
         jdkVersion: [ openjdk9, openjdk10, openjdk11, openjdk21 ]
     steps:
       - name: Checkout source code