Add UDP probes in anticipation of DNS monitoring #526

Job	Run time
Platform (aarch64) / Build	5m 57s
Platform (x86_64) / Build	1m 10s
Test (x86_64) / Kernel (amazonlinux2)	7m 45s
Test (x86_64) / Kernel (centos)	4m 12s
Test (x86_64) / Kernel (debian)	42m 8s
Test (x86_64) / Kernel (fedora)	4m 58s
Test (x86_64) / Kernel (mainline)	42m 6s
Test (x86_64) / Kernel (rocky)	2m 33s
Test (x86_64) / Kernel (ubuntu-aws)	13m 5s
Test (x86_64) / Kernel (ubuntu-azure)	12m 47s
Test (x86_64) / Kernel (ubuntu-gcp)	9m 27s
Test (x86_64) / Kernel (ubuntu-gke)	2m 27s
Test (x86_64) / Kernel (ubuntu-oem)	11m 12s
Test (x86_64) / Kernel (ubuntu-oracle)	8m 14s
Test (aarch64) / Kernel (amazonlinux2)	8m 3s
Test (aarch64) / Kernel (debian)	2m 35s
Test (aarch64) / Kernel (fedora)	2m 40s
Test (aarch64) / Kernel (mainline)	15m 1s
Test (aarch64) / Kernel (rocky)	2m 16s
Test (aarch64) / Kernel (ubuntu-aws)	8m 22s
Test (aarch64) / Kernel (ubuntu-azure)	8m 14s
Test (aarch64) / Kernel (ubuntu-gcp)	2m 36s
Test (aarch64) / Kernel (ubuntu-gke)	2m 20s
Test (aarch64) / Kernel (ubuntu-oracle)	6m 8s
CI Merge Auditor	1s
	3h 46m 17s

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