Automatically detect deleted resources #753

Job	Run time
check (build)	41s
check (pep8)	39s
doc (docs)	1m 37s
test (py39, postgresql-file-upgrade-from-4.4)	2m 43s
doc (docs-gnocchi-web)	1m 37s
test (py39, mysql-file)	3m 16s
test (py39, mysql-file-sqlalchemy14)	3m 17s
test (py39, mysql-swift)	3m 39s
test (py39, mysql-s3)	4m 15s
test (py39, postgresql-file)	3m 6s
test (py39, postgresql-file-sqlalchemy14)	2m 57s
test (py39, postgresql-swift)	3m 18s
test (py39, postgresql-s3)	3m 40s
test (py311, postgresql-file-upgrade-from-4.4)	2m 56s
test (py311, mysql-file)	3m 8s
test (py311, mysql-file-sqlalchemy14)	2m 59s
test (py311, mysql-swift)	3m 40s
test (py311, mysql-s3)	3m 53s
test (py311, postgresql-file)	2m 48s
test (py311, postgresql-file-sqlalchemy14)	2m 55s
test (py311, postgresql-swift)	3m 36s
test (py311, postgresql-s3)	3m 38s
	1h 4m 18s

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