Update comment to exculde ubuntu-14.04 for making badges #848

Job	Run time
ubuntu-14.04: build and test (install mdns: true, use conan: false, force cpprest asio: false, dns-sd mode: multicast)	36m 41s
ubuntu-20.04: build and test (install mdns: false, use conan: true, force cpprest asio: false, dns-sd mode: multicast)	22m 26s
ubuntu-20.04: build and test (install mdns: false, use conan: true, force cpprest asio: false, dns-sd mode: unicast)	24m 57s
ubuntu-20.04: build and test (install mdns: true, use conan: true, force cpprest asio: false, dns-sd mode: multicast)	24m 30s
macos-11: build and test (install mdns: false, use conan: true, force cpprest asio: false, dns-sd mode: multicast)	32m 34s
windows-2019: build and test (install mdns: false, use conan: true, force cpprest asio: false, dns-sd mode: multicast)	34m 33s
windows-2019: build and test (install mdns: false, use conan: true, force cpprest asio: true, dns-sd mode: multicast)	29m 28s
ubuntu-22.04: build and test (install mdns: false, use conan: true, force cpprest asio: false, dns-sd mode: multicast)	23m 15s
make_badges	0s
	3h 48m 24s

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