Minor fix to make the binary decoder more robust for packed fields
Minor fix to make the binary decoder more robust for packed fields

rgooding/Protobuf-PHP,centraldesktop/Protobuf-PHP,miniplay/Protobuf-PHP,protobuf-php/protobuf,geneanet/Protobuf-PHP,datto/Protobuf-PHP,protobuf-php/protobuf,stanley-cheung/Protobuf-PHP,miniplay/Protobuf-PHP,rgooding/Protobuf-PHP,felipernb/Protobuf-PHP,rgooding/Protobuf-PHP,datto/Protobuf-PHP,sylar94444/Protobuf-PHP,drslump/Protobuf-PHP,datto/Protobuf-PHP,drslump/Protobuf-PHP,felipernb/Protobuf-PHP,sylar94444/Protobuf-PHP,yiliaofan/Protobuf-PHP,stanley-cheung/Protobuf-PHP,drslump/Protobuf-PHP,yiliaofan/Protobuf-PHP