cleanup build command for local (-l) mode

[lgadban]

$ go run -exec sudo ./bee/main.go build -l examples/tcpconnect/tcpconnect.c 2-bad-tcpconnect.o
 ▄ Compiling BPF program locally (0s)Successfully compiled "examples/tcpconnect/tcpconnect.c" and wrote it to "examples/tcpconnect/tcpconnect.o"
 SUCCESS  Successfully compiled "examples/tcpconnect/tcpconnect.c" and wrote it to "examples/tcpconnect/tcpconnect.o"                                                                                                                                                                                                  
 SUCCESS  Saved BPF OCI image to 2-bad-tcpconnect.o 

need to fix or correctly doc how to build locally without docker and storing in image, output flag may be important here