makefile: use git email for AUTHOR value
makefile: use git email for AUTHOR value

Local users often don't map well to names known in the org.

Signed-off-by: Jakub Sokołowski <1d3764b91b902f6b45836e2498da81fe35caf6d6@status.im>

status-im/status-go,status-im/status-go,status-im/status-go