MINIFICPP-2135 Add SSL support for Prometheus reporter #4203

Job	Run time
macos-xcode	1h 7m 58s
centos	1h 20m 48s
Docker build for integration tests	1h 13m 34s
ubuntu-20.04	54m 40s
ubuntu-20.04-clang	1h 8m 0s
windows-2019	2h 3m 33s
Docker integration tests	23m 30s
	8h 12m 3s

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