feat: authentication middleware for the GoCert server #334

Job	Run time
unit-test-frontend / nextjs-unit-tests	16s
build-nextjs / nextjs-build	41s
build-gocert / go-build	14s
go-vet / go-vet	15s
unit-test-gocert / go-unit-tests	17s
go-lint / lint	28s
rock-build / build-rock	6m 50s
rock-scan	0s
publish	0s
	9m 1s

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