Add link to script for publishing operator on OperatorHub #7500

Job	Run time
awx_collection integration (a-h, ^[a-h])	13m 59s
awx-operator	30m 36s
awx_collection sanity	1m 23s
awx_collection integration (i-p, ^[i-p])	16m 28s
awx_collection integration (r-z0-9, ^[r-z0-9])	13m 36s
dev-env	5m 19s
api-test	13m 6s
api-lint	2m 0s
api-swagger	6m 16s
awx-collection	3m 6s
api-schema	10m 56s
ui-lint	3m 17s
ui-test-screens	20m 41s
ui-test-general	8m 32s
combine awx_collection integration coverage	1m 28s
	2h 30m 43s

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