Bump golang.org/x/net from 0.21.0 to 0.23.0 in /cmd/mdatagen #8

Job	Run time
govulncheck	1m 1s
setup-environment	32s
checks	54s
cross-build-collector (darwin, amd64)	41s
lint	2m 9s
unittest-matrix (~1.22)	2m 8s
cross-build-collector (darwin, arm64)	40s
test-coverage	2m 16s
unittest-matrix (~1.21.5)	2m 15s
cross-build-collector (linux, 386)	43s
cross-build-collector (linux, amd64)	45s
cross-build-collector (linux, arm64)	51s
cross-build-collector (linux, ppc64le)	45s
cross-build-collector (linux, arm, 7)	42s
cross-build-collector (linux, s390x)	50s
cross-build-collector (windows, 386)	39s
cross-build-collector (windows, amd64)	39s
unittest	1s
	18m 31s

Provide feedback