upgrade deps - including sbt-paradox plugin #105

Job	Run time
Documentation with Paradox	2m 58s
samples (ftp-to-file)	2m 51s
samples (http-csv-to-kafka)	3m 4s
samples (jdbc-to-elasticsearch)	2m 52s
samples (jms)	2m 59s
samples (kafka-to-websocket-clients)	2m 51s
samples (kafka-to-elasticsearch)	2m 53s
samples (mqtt-to-kafka)	2m 53s
samples (file-to-elasticsearch)	2m 51s
samples (mqtt-http-to-s3-java)	2m 41s
samples (sqs-java)	2m 48s
samples (rotate-logs-to-ftp)	2m 50s
	34m 31s

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