Add UDP probes in anticipation of DNS monitoring #560

Job	Run time
Platform (aarch64) / Build	5m 53s
Platform (x86_64) / Build	1m 20s
Test (x86_64) / Kernel (amazonlinux2)	28m 39s
Test (x86_64) / Kernel (centos)	4m 5s
Test (x86_64) / Kernel (debian)	15m 55s
Test (x86_64) / Kernel (fedora)	6m 54s
Test (x86_64) / Kernel (mainline)	35m 7s
Test (x86_64) / Kernel (rocky)	4m 27s
Test (x86_64) / Kernel (ubuntu-aws)	35m 10s
Test (x86_64) / Kernel (ubuntu-azure)	35m 11s
Test (x86_64) / Kernel (ubuntu-gcp)	35m 9s
Test (x86_64) / Kernel (ubuntu-gke)	4m 16s
Test (x86_64) / Kernel (ubuntu-oem)	11m 26s
Test (x86_64) / Kernel (ubuntu-oracle)	31m 13s
Test (aarch64) / Kernel (amazonlinux2)	30m 37s
Test (aarch64) / Kernel (debian)	6m 36s
Test (aarch64) / Kernel (fedora)	10m 29s
Test (aarch64) / Kernel (mainline)	30m 38s
Test (aarch64) / Kernel (rocky)	5m 35s
Test (aarch64) / Kernel (ubuntu-aws)	30m 40s
Test (aarch64) / Kernel (ubuntu-azure)	30m 37s
Test (aarch64) / Kernel (ubuntu-gcp)	10m 16s
Test (aarch64) / Kernel (ubuntu-gke)	5m 13s
Test (aarch64) / Kernel (ubuntu-oracle)	30m 36s
CI Merge Auditor	1s
	7h 26m 3s

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