feat(new sink): initial `websocket_server` sink #46688

Job	Run time
changes / int_tests	0s
changes / source	5s
changes / e2e_tests	0s
Build - x86_64-unknown-linux-gnu	0s
Compute K8s test plan	0s
K8s ${{ matrix.kubernetes_version.version }} / ${{ matrix.container_runtime }} (${{ matrix.kubernetes_version.role }})	0s
K8s E2E Suite	4s
	9s

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