api/server: bump to 0.12.4-rc1
api/server: bump to 0.12.4-rc1

cezarsa/tsuru,tsuru/tsuru,ArxdSilva/tsuru,guilhermebr/tsuru,guilhermebr/tsuru,Endika/tsuru,Endika/tsuru,tsuru/tsuru,tsuru/tsuru,cezarsa/tsuru,cezarsa/tsuru,gwmoura/tsuru,ArxdSilva/tsuru,ArxdSilva/tsuru,tsuru/tsuru,gwmoura/tsuru,gwmoura/tsuru,ArxdSilva/tsuru,Endika/tsuru,ggarnier/tsuru,guilhermebr/tsuru,ggarnier/tsuru,ggarnier/tsuru,guilhermebr/tsuru,cezarsa/tsuru,ggarnier/tsuru