Fix: load materializations before run janitor #3650

Job	Run time
changes	7s
test-dbt-versions (1.3)	1m 47s
test-dbt-versions (1.8)	1m 39s
test-dbt-versions (1.7)	1m 44s
test-dbt-versions (1.10)	1m 58s
test-dbt-versions (1.5)	1m 45s
test-dbt-versions (1.4)	1m 30s
test-dbt-versions (1.6)	1m 39s
test-dbt-versions (1.9)	1m 29s
test-vscode	0s
test-vscode-e2e	0s
cicd-tests-windows	11m 36s
doc-tests	32s
style-and-cicd-tests (3.11)	23m 11s
style-and-cicd-tests (3.13)	21m 55s
style-and-cicd-tests (3.10)	18m 16s
engine-tests-docker (trino)	8m 4s
style-and-cicd-tests (3.9)	23m 10s
migration-test	1m 32s
style-and-cicd-tests (3.12)	18m 14s
engine-tests-docker (spark)	5m 58s
engine-tests-docker (clickhouse)	2m 38s
engine-tests-docker (duckdb)	1m 29s
engine-tests-docker (risingwave)	2m 46s
engine-tests-docker (mssql)	1m 55s
engine-tests-docker (mysql)	1m 38s
engine-tests-docker (postgres)	2m 29s
ui-test	0s
ui-style	-1s
engine-tests-cloud	-1s
	2h 38m 59s

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