Add `secure` field to ClickHouse connection config #3643

Job	Run time
changes	6s
test-dbt-versions (1.6)	1m 42s
test-dbt-versions (1.10)	1m 45s
test-dbt-versions (1.3)	1m 34s
test-dbt-versions (1.8)	1m 36s
test-dbt-versions (1.9)	1m 41s
test-dbt-versions (1.7)	1m 33s
test-dbt-versions (1.4)	1m 32s
test-dbt-versions (1.5)	1m 32s
test-vscode-e2e	0s
test-vscode	0s
cicd-tests-windows	11m 45s
migration-test	1m 31s
doc-tests	31s
style-and-cicd-tests (3.10)	21m 50s
style-and-cicd-tests (3.9)	24m 15s
style-and-cicd-tests (3.11)	24m 5s
style-and-cicd-tests (3.12)	23m 12s
engine-tests-docker (mysql)	1m 42s
style-and-cicd-tests (3.13)	17m 49s
engine-tests-docker (postgres)	2m 56s
engine-tests-docker (duckdb)	1m 35s
engine-tests-docker (trino)	8m 26s
engine-tests-docker (spark)	5m 33s
engine-tests-docker (mssql)	1m 50s
engine-tests-docker (risingwave)	2m 39s
engine-tests-docker (clickhouse)	2m 44s
ui-test	0s
ui-style	0s
engine-tests-cloud	-1s
	2h 45m 23s

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