Add auto-approve and auto merge into automatic update action #1599

Job	Run time
setup-matrix	5s
run-integration-tests (./examples/app-with-extensions)	2m 40s
run-integration-tests (./examples/datasource-http)	3m 8s
run-integration-tests (./examples/panel-frame-select)	2m 31s
run-integration-tests (./examples/datasource-streaming-websocket/streaming-websocket-plugin)	3m 2s
run-integration-tests (./examples/panel-basic)	2m 22s
run-integration-tests (./examples/app-with-scenes)	3m 8s
run-integration-tests (./examples/datasource-basic)	4m 12s
run-integration-tests (./examples/app-with-rbac)	3m 39s
run-integration-tests (./examples/datasource-streaming-backend-websocket/streaming-backend-websoc...	4m 33s
run-integration-tests (./examples/app-with-extension-point)	2m 37s
run-integration-tests (./examples/panel-datalinks)	2m 52s
run-integration-tests (./examples/datasource-http-backend)	5m 16s
run-integration-tests (./examples/app-with-service-account)	3m 11s
run-integration-tests (./examples/app-with-dashboards)	2m 55s
run-integration-tests (./examples/app-with-backend)	3m 21s
run-integration-tests (./examples/app-basic)	3m 1s
run-integration-tests (./examples/datasource-logs)	2m 31s
notify	0s
	55m 4s

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