fix(format): keep MODEL/AUDIT/METRIC header dialect-agnostic (#5773) … #3877

Job	Run time
changes	8s
test-dbt-versions (1.4)	1m 35s
test-dbt-versions (1.5)	1m 34s
test-dbt-versions (1.7)	1m 52s
test-dbt-versions (1.3)	1m 48s
test-dbt-versions (1.9)	1m 48s
test-dbt-versions (1.8)	1m 30s
test-dbt-versions (1.6)	1m 42s
test-dbt-versions (1.10)	1m 40s
test-vscode	0s
test-vscode-e2e	0s
doc-tests	31s
cicd-tests-windows	11m 32s
ui-test	1m 21s
style-and-cicd-tests (3.11)	23m 21s
style-and-cicd-tests (3.12)	24m 15s
style-and-cicd-tests (3.13)	23m 39s
style-and-cicd-tests (3.9)	23m 19s
style-and-cicd-tests (3.10)	24m 48s
migration-test	1m 26s
engine-tests-docker (risingwave)	2m 41s
engine-tests-docker (duckdb)	1m 38s
engine-tests-docker (mysql)	1m 45s
engine-tests-docker (postgres)	2m 13s
engine-tests-docker (clickhouse)	2m 51s
engine-tests-docker (mssql)	2m 2s
engine-tests-docker (trino)	8m 39s
engine-tests-docker (starrocks)	2m 33s
engine-tests-docker (spark)	5m 10s
ui-style	0s
engine-tests-cloud (bigquery)	17m 16s
engine-tests-cloud (databricks)	14m 53s
engine-tests-cloud (snowflake)	9m 17s
engine-tests-cloud (clickhouse-cloud)	10m 59s
engine-tests-cloud (gcp-postgres)	2m 33s
engine-tests-cloud (redshift)	7m 16s
engine-tests-cloud (fabric)	4m 44s
engine-tests-cloud (athena)	21m 44s
	4h 26m 3s

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