fix: use the logger from std lib at cmd entry

[dkeven]

the logger in the "bytetrade.io/web3os/installer/pkg/core/logger" package, used across this project, is initialized in:

Installer/pkg/core/connector/runtime.go

Line 81 in f801cee

if err := base.InitLogger(consoleLogFileName, consoleLogTruncate); err != nil {

which is typically called in the Run method of a command like this:

Installer/cmd/ctl/os/install.go

Lines 26 to 28 in f801cee

	if err := pipelines.CliInstallTerminusPipeline(o.InstallOptions); err != nil {
	logger.Fatalf("install Olares error: %v", err)
	}

but other errors might also be returned before the logger is actually initialized, resulting in a nil pointer panic.
we should just simply use the logger from the standard library in this case, because:

• if the command errors out before the logger is initialized, it means no task has been executed, thus a simple console log is enough.
• if the command errors out after the logger is initialized, the actual log is already handled by the logger and it's also ok to use the standard log lib to print the error message at the end and exit.