[configtls] Add NewDefault* funcs #18895

Job	Run time
govulncheck	28s
setup-environment	14s
checks	1m 42s
test-coverage	5m 21s
unittest-matrix (ubuntu-latest, ~1.22)	2m 22s
lint	3m 23s
unittest-matrix (ubuntu-latest, ~1.21.9)	2m 32s
cross-build-collector (darwin, amd64)	38s
unittest-matrix (actuated-arm64-4cpu-4gb, ~1.22)	2m 36s
unittest-matrix (actuated-arm64-4cpu-4gb, ~1.21.9)	2m 32s
cross-build-collector (darwin, arm64)	39s
cross-build-collector (linux, 386)	37s
cross-build-collector (linux, amd64)	37s
cross-build-collector (linux, arm64)	39s
cross-build-collector (linux, ppc64le)	41s
cross-build-collector (linux, arm, 7)	39s
cross-build-collector (linux, s390x)	37s
cross-build-collector (windows, 386)	39s
cross-build-collector (windows, amd64)	38s
unittest	1s
	27m 35s

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