Add 29-rc #820

Job	Run time
Generate Jobs	42s
29.0.0-rc.1-windowsservercore-ltsc2025	8m 39s
28.5.1-windowsservercore-ltsc2022	1m 54s
28.5.1-windowsservercore-ltsc2025	9m 13s
29.0.0-rc.1-windowsservercore-ltsc2022	1m 41s
29.0.0-rc.1-cli, 29.0.0-rc.1-dind, 29.0.0-rc.1-dind-rootless	1m 9s
28.5.1-cli, 28.5.1-dind, 28.5.1-dind-rootless	1m 1s
	24m 19s

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