[chore] Add newline to the end of the chloggen template #17376

Job	Run time
govulncheck	30s
setup-environment	13s
checks	1m 46s
lint	3m 12s
test-coverage	2m 25s
cross-build-collector (darwin, amd64)	1m 0s
cross-build-collector (darwin, arm64)	36s
unittest-matrix (~1.21.5)	1m 32s
cross-build-collector (linux, 386)	49s
unittest-matrix (~1.20.12)	1m 26s
cross-build-collector (linux, amd64)	49s
cross-build-collector (linux, arm64)	43s
cross-build-collector (linux, ppc64le)	37s
cross-build-collector (linux, arm, 7)	37s
cross-build-collector (linux, s390x)	39s
cross-build-collector (windows, 386)	48s
cross-build-collector (windows, amd64)	44s
unittest	1s
	18m 27s

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