Update to Go 1.16 and fix broken go.mod mod declaration

Plus `go mod tidy`

.circleci/config.yml

@@ -1,10 +1,9 @@
 version: 2
 jobs:
   build:
-    working_directory: /go/src/github.com/Clever/amazon-kinesis-client-go
+    working_directory: ~/go/src/github.com/Clever/amazon-kinesis-client-go
     docker:
-    - image: circleci/golang:1.13-stretch
-    - image: circleci/mongo:3.2.20-jessie-ram
+    - image: cimg/go:1.16
     environment:
       GOPRIVATE: github.com/Clever/*
       CIRCLE_ARTIFACTS: /tmp/circleci-artifacts

Makefile

@@ -5,7 +5,7 @@ SHELL := /bin/bash
 PKG := github.com/Clever/amazon-kinesis-client-go
 PKGS := $(shell go list ./... | grep -v /vendor )
 .PHONY: download_jars run build
-$(eval $(call golang-version-check,1.13))
+$(eval $(call golang-version-check,1.16))
 
 CONSUMER ?= consumer
 TMP_DIR := ./tmp-jars

go.mod

@@ -1,9 +1,8 @@
-module github.com/amazon-kinesis-client-go
+module github.com/Clever/amazon-kinesis-client-go
 
-go 1.13
+go 1.16
 
 require (
-	github.com/Clever/amazon-kinesis-client-go v1.0.0
 	github.com/Clever/syslogparser v0.0.0-20170816194131-fb28ad3e4340
 	github.com/a8m/kinesis-producer v0.2.0
 	github.com/aws/aws-sdk-go v1.35.28 // indirect

go.sum

@@ -1,5 +1,3 @@
-github.com/Clever/amazon-kinesis-client-go v1.0.0 h1:rG+hkHCSe+xMGk3asESg18tiEj8X6To8vj0TRa1pKvQ=
-github.com/Clever/amazon-kinesis-client-go v1.0.0/go.mod h1:jLfi8QusUjdsYazmEH0DlSO4gE1WRzVE7cs4c/fOFdI=
 github.com/Clever/syslogparser v0.0.0-20170816194131-fb28ad3e4340 h1:wr8lTqPJZQpZkZgllQtrD96SecXkAu5MxzY3yJgsuCg=
 github.com/Clever/syslogparser v0.0.0-20170816194131-fb28ad3e4340/go.mod h1:e7Yy7RTiIMU9pZ+dcSviX3cpod8e0CEeTUPTgBbKlRE=
 github.com/a8m/kinesis-producer v0.2.0 h1:Bd5Oi4dczbTLPIZwVbm02464LIFgBqmViFj//b098xc=