Add Testcontainers example with Node.js #3320

Job	Run time
lint	9s
staticcheck	42s
tests (macos/go-1.21-amd64)	28s
build	40s
tests (ubuntu/go-1.21-386)	9s
tests (ubuntu/go-1.21-amd64)	1m 1s
tests (windows/go-1.21-386)	4m 33s
tests (windows/go-1.21-amd64)	2m 19s
tests (macos/go-1.22-amd64)	33s
tests (ubuntu/go-1.22-386)	47s
tests (ubuntu/go-1.22-amd64)	1m 1s
tests (windows/go-1.22-386)	5m 10s
tests (windows/go-1.22-amd64)	6m 31s
test-python-example	20s
test-gsutil-example	26s
test-node-example	14s
test-go-example	32s
test-dotnet-example	13s
test-ruby-example	11s
test-scala-example	33s
test-java-example	17s
test-cpp-example	2m 18s
test-curl-example	5s
test-curl-both-scheme-default-ports-example	5s
test-curl-both-scheme-non-default-ports-example	5s
unblock-pr	1s
	29m 23s

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