Add UDP probes in anticipation of DNS monitoring #557

Job	Run time
Platform (x86_64) / Build	1m 10s
Platform (aarch64) / Build	6m 8s
Test (x86_64) / Kernel (amazonlinux2)	14m 4s
Test (x86_64) / Kernel (centos)	4m 19s
Test (x86_64) / Kernel (debian)	14m 3s
Test (x86_64) / Kernel (fedora)	7m 24s
Test (x86_64) / Kernel (mainline)	14m 5s
Test (x86_64) / Kernel (rocky)	4m 26s
Test (x86_64) / Kernel (ubuntu-aws)	14m 3s
Test (x86_64) / Kernel (ubuntu-azure)	14m 6s
Test (x86_64) / Kernel (ubuntu-gcp)	14m 4s
Test (x86_64) / Kernel (ubuntu-gke)	3m 54s
Test (x86_64) / Kernel (ubuntu-oem)	11m 32s
Test (x86_64) / Kernel (ubuntu-oracle)	14m 4s
Test (aarch64) / Kernel (amazonlinux2)	9m 5s
Test (aarch64) / Kernel (debian)	6m 28s
Test (aarch64) / Kernel (fedora)	9m 2s
Test (aarch64) / Kernel (mainline)	9m 5s
Test (aarch64) / Kernel (rocky)	4m 51s
Test (aarch64) / Kernel (ubuntu-aws)	9m 5s
Test (aarch64) / Kernel (ubuntu-azure)	9m 5s
Test (aarch64) / Kernel (ubuntu-gcp)	9m 4s
Test (aarch64) / Kernel (ubuntu-gke)	5m 38s
Test (aarch64) / Kernel (ubuntu-oracle)	9m 5s
CI Merge Auditor	1s
	3h 37m 51s

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