common.gradle: use lazy execution to accelerate builds

Author: stephengold

common.gradle

@@ -11,7 +11,7 @@ java {
 import org.gradle.nativeplatform.platform.internal.DefaultNativePlatform
 Boolean isMacOS = DefaultNativePlatform.currentOperatingSystem.isMacOsX()
 
-tasks.withType(JavaExec) { // Java runtime options:
+tasks.withType(JavaExec).configureEach { // Java runtime options:
     if (isMacOS) {
         args '--noDialog'
         jvmArgs '-XstartOnFirstThread'