feat(cli): increase default thread count

relate to kestra-io#4775

cli/src/main/java/io/kestra/cli/commands/servers/AbstractServerCommand.java

@@ -6,4 +6,8 @@
 abstract public class AbstractServerCommand extends AbstractCommand implements ServerCommandInterface {
     @CommandLine.Option(names = {"--port"}, description = "the port to bind")
     Integer serverPort;
+
+    protected static int defaultWorkerThread() {
+        return Runtime.getRuntime().availableProcessors() * 4;
+    }
 }

cli/src/main/java/io/kestra/cli/commands/servers/StandAloneCommand.java

@@ -41,7 +41,7 @@ public class StandAloneCommand extends AbstractServerCommand {
     private File flowPath;
 
     @CommandLine.Option(names = {"--worker-thread"}, description = "the number of worker threads, defaults to two times the number of available processors. Set it to 0 to avoid starting a worker.")
-    private int workerThread = Runtime.getRuntime().availableProcessors() * 2;
+    private int workerThread = defaultWorkerThread();
 
     @CommandLine.Option(names = {"--skip-executions"}, split=",", description = "a list of execution identifiers to skip, separated by a coma; for troubleshooting purpose only")
     private List<String> skipExecutions = Collections.emptyList();

cli/src/main/java/io/kestra/cli/commands/servers/WorkerCommand.java

@@ -24,7 +24,7 @@ public class WorkerCommand extends AbstractServerCommand {
     private ApplicationContext applicationContext;
 
     @CommandLine.Option(names = {"-t", "--thread"}, description = "the max number of worker threads, defaults to two times the number of available processors")
-    private int thread = Runtime.getRuntime().availableProcessors() * 2;
+    private int thread = defaultWorkerThread();
 
     @CommandLine.Option(names = {"-g", "--worker-group"}, description = "the worker group key, must match the regex [a-zA-Z0-9_-]+ (EE only)")
     private String workerGroupKey = null;