rm merge-dependabot-pr.yml from Unsupported Branch #8186

Job	Run time
Check Samples	9m 36s
Build (ubuntu-latest, 17) / Build	1m 50s
Build (windows-latest, 17) / Build	5m 44s
Test Against Snapshots (17, 17) / Test	5m 22s
Test Against Snapshots (21-ea, 21) / Test	6m 14s
Deploy Artifacts / Deploy Artifacts	1m 41s
Deploy Docs / Deploy Docs	1m 11s
Deploy Schema / Deploy Schema	52s
Perform Release / Perform Release	0s
Send Notification	5s
	32m 35s

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