chore: improve release binary

[chenrui333]

improve the release binary with linker flags -s -w, would shrink the binary by 1/3

$ go build -o frizbee_normal

$ ls -lh frizbee_normal
-rwxr-xr-x  1 rui  staff    18M Jul 15 14:10 frizbee_normal

$ go build -ldflags="-s -w" -o frizbee_stripped

$ ls -lh frizbee_stripped
-rwxr-xr-x  1 rui  staff    12M Jul 15 14:11 frizbee_stripped

[coveralls]

coverage: 52.747%. remained the same
when pulling dcb86d9 on chenrui333:opt-release-binary
into 0c74f2d on stacklok:main.