doc: fix a typo in the concepts overview (#5866) #3868

Job	Run time
test-dbt-versions (1.7)	1m 48s
test-dbt-versions (1.4)	1m 28s
test-dbt-versions (1.9)	1m 40s
changes	8s
test-dbt-versions (1.5)	1m 36s
test-dbt-versions (1.3)	1m 41s
test-dbt-versions (1.8)	1m 43s
test-dbt-versions (1.10)	1m 39s
test-dbt-versions (1.6)	1m 38s
test-vscode-e2e	0s
test-vscode	0s
style-and-cicd-tests (3.12)	22m 48s
doc-tests	28s
cicd-tests-windows	11m 9s
style-and-cicd-tests (3.13)	22m 10s
ui-test	1m 25s
migration-test	1m 25s
style-and-cicd-tests (3.9)	23m 59s
style-and-cicd-tests (3.11)	20m 48s
style-and-cicd-tests (3.10)	24m 3s
engine-tests-docker (postgres)	2m 16s
engine-tests-docker (mysql)	1m 59s
engine-tests-docker (risingwave)	2m 29s
engine-tests-docker (clickhouse)	2m 34s
engine-tests-docker (trino)	8m 33s
engine-tests-docker (starrocks)	2m 31s
engine-tests-docker (spark)	5m 8s
engine-tests-docker (duckdb)	1m 34s
engine-tests-docker (mssql)	1m 56s
ui-style	0s
engine-tests-cloud (clickhouse-cloud)	13m 54s
engine-tests-cloud (databricks)	13m 36s
engine-tests-cloud (athena)	22m 32s
engine-tests-cloud (redshift)	5m 29s
engine-tests-cloud (fabric)	5m 14s
engine-tests-cloud (snowflake)	8m 48s
engine-tests-cloud (bigquery)	15m 14s
engine-tests-cloud (gcp-postgres)	2m 46s
	4h 18m 9s

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