Add UDP probes in anticipation of DNS monitoring #525

Job	Run time
Platform (aarch64) / Build	6m 14s
Platform (x86_64) / Build	1m 9s
Test (x86_64) / Kernel (amazonlinux2)	7m 57s
Test (x86_64) / Kernel (centos)	4m 8s
Test (x86_64) / Kernel (debian)	4h 16m 46s
Test (x86_64) / Kernel (fedora)	5m 8s
Test (x86_64) / Kernel (mainline)	4h 16m 46s
Test (x86_64) / Kernel (rocky)	2m 21s
Test (x86_64) / Kernel (ubuntu-aws)	12m 49s
Test (x86_64) / Kernel (ubuntu-azure)	13m 6s
Test (x86_64) / Kernel (ubuntu-gcp)	9m 41s
Test (x86_64) / Kernel (ubuntu-gke)	2m 37s
Test (x86_64) / Kernel (ubuntu-oem)	11m 25s
Test (x86_64) / Kernel (ubuntu-oracle)	7m 50s
Test (aarch64) / Kernel (amazonlinux2)	38m 45s
Test (aarch64) / Kernel (debian)	6m 14s
Test (aarch64) / Kernel (fedora)	9m 44s
Test (aarch64) / Kernel (mainline)	57m 12s
Test (aarch64) / Kernel (rocky)	5m 22s
Test (aarch64) / Kernel (ubuntu-aws)	40m 47s
Test (aarch64) / Kernel (ubuntu-azure)	40m 40s
Test (aarch64) / Kernel (ubuntu-gcp)	10m 0s
Test (aarch64) / Kernel (ubuntu-gke)	5m 38s
Test (aarch64) / Kernel (ubuntu-oracle)	30m 53s
CI Merge Auditor	1s
	14h 3m 13s

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