Add support for Postgres17 (+ misc linting changes) #474

Job	Run time
run_tests (golang:1.20.14-alpine3.19, postgresql14)	10m 46s
run_tests (golang:1.20.14-alpine3.19, postgresql15)	7m 46s
run_tests (golang:1.20.14-alpine3.19, postgresql16)	7m 28s
run_tests (golang:1.22.10-alpine3.21, postgresql17)	7m 52s
	33m 52s

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