Bump go, dependencies, improve linting a lot (#29) #31

Job	Run time
upload-test-lambdas / Upload account-alerts function to S3	49s
upload-test-lambdas / Upload alert-elb-cloudwatch-alarm function to S3	34s
upload-test-lambdas / Upload bind-server-network-attachment function to S3	41s
upload-test-lambdas / Upload cloud-server-auth function to S3	34s
upload-test-lambdas / Upload create-elb-cloudwatch-alarm function to S3	34s
upload-test-lambdas / Upload create-rds-cloudwatch-alarm function to S3	33s
upload-test-lambdas / Upload deckhand function to S3	38s
upload-test-lambdas / Upload ebs-janitor function to S3	41s
upload-test-lambdas / Upload cloudwatch-event-alerts function to S3	28s
upload-test-lambdas / Upload elb-cleanup function to S3	39s
upload-test-lambdas / Upload elrond-notification function to S3	1m 8s
upload-test-lambdas / Upload gitlab-webhook function to S3	39s
upload-test-lambdas / Upload logs-to-opensearch function to S3	18s
upload-test-lambdas / Upload rds-cluster-events function to S3	36s
upload-test-lambdas / Upload lambda-promtail function to S3	41s
upload-test-lambdas / Upload grafana-aws-metrics function to S3	46s
upload-test-lambdas / Upload provisioner-notification function to S3	1m 19s
	11m 38s

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