fix: register gRPC Gateway routes (backport #2838) (#2842) #2548

Job	Run time
goreleaser-check	6s
lint / golangci-lint	1m 23s
lint / yamllint	9s
markdown-linter / markdown-link-check	1m 27s
markdown-linter / markdown-lint	10s
test / test	6m 27s
test / test-coverage	13m 10s
test / test-short	1m 45s
test / test-race	5m 13s
lint / hadolint / hadolint	11s
version_bump	3s
goreleaser	0s
	30m 4s

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