feat(models): render blueprint vars in columns dict (#5845) #3773

Job	Run time
changes	8s
test-dbt-versions (1.3)	1m 46s
test-dbt-versions (1.7)	2m 42s
test-dbt-versions (1.4)	1m 35s
test-dbt-versions (1.10)	1m 40s
test-dbt-versions (1.8)	1m 34s
test-dbt-versions (1.5)	1m 33s
test-dbt-versions (1.9)	1m 46s
test-dbt-versions (1.6)	2m 48s
test-vscode-e2e	0s
test-vscode	0s
ui-test	1m 19s
migration-test	1m 32s
cicd-tests-windows	11m 10s
style-and-cicd-tests (3.11)	22m 43s
doc-tests	34s
style-and-cicd-tests (3.9)	24m 38s
style-and-cicd-tests (3.12)	24m 29s
style-and-cicd-tests (3.13)	22m 42s
style-and-cicd-tests (3.10)	23m 34s
engine-tests-docker (trino)	7m 39s
engine-tests-docker (duckdb)	1m 50s
engine-tests-docker (mysql)	1m 34s
engine-tests-docker (mssql)	1m 57s
engine-tests-docker (risingwave)	2m 37s
engine-tests-docker (starrocks)	2m 48s
engine-tests-docker (spark)	5m 37s
engine-tests-docker (postgres)	2m 29s
engine-tests-docker (clickhouse)	2m 55s
ui-style	-1s
engine-tests-cloud (athena)	19m 43s
engine-tests-cloud (bigquery)	23m 28s
engine-tests-cloud (redshift)	7m 3s
engine-tests-cloud (databricks)	13m 23s
engine-tests-cloud (snowflake)	7m 57s
engine-tests-cloud (clickhouse-cloud)	14m 12s
engine-tests-cloud (fabric)	5m 11s
engine-tests-cloud (gcp-postgres)	2m 37s
	4h 31m 12s

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