feat: Update LambdaDsl.newJsonArray to allow setting the number of ex… #1946

Job	Run time
supported_jdks (core, 17)	2m 3s
latest_jdk (ubuntu-latest, core)	2m 3s
supported_jdks (core, 18)	1m 58s
latest_jdk (ubuntu-latest, consumer -x :consumer:junit:clojureTest)	3m 11s
supported_jdks (consumer, 17)	3m 28s
latest_jdk (ubuntu-latest, provider)	3m 49s
supported_jdks (consumer, 18)	3m 21s
latest_jdk (ubuntu-latest, pact-specification-test)	1m 32s
supported_jdks (provider, 17)	4m 0s
latest_jdk (windows-latest, core)	3m 6s
supported_jdks (provider, 18)	3m 36s
latest_jdk (windows-latest, consumer -x :consumer:junit:clojureTest)	5m 11s
supported_jdks (pact-specification-test, 17)	1m 37s
latest_jdk (windows-latest, provider)	5m 59s
supported_jdks (pact-specification-test, 18)	1m 35s
latest_jdk (windows-latest, pact-specification-test)	2m 15s
latest_jdk (macos-latest, core)	1m 46s
latest_jdk (macos-latest, consumer -x :consumer:junit:clojureTest)	3m 20s
latest_jdk (macos-latest, provider)	3m 55s
latest_jdk (macos-latest, pact-specification-test)	2m 15s
	1h 0m 0s

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