feat(bigquery): Add support for Bigquery reservations in config (again) #3499

Job	Run time
test-vscode	1m 1s
changes	6s
test-dbt-versions (1.4)	1m 28s
test-dbt-versions (1.10)	1m 46s
test-dbt-versions (1.9)	1m 36s
test-dbt-versions (1.7)	1m 46s
test-dbt-versions (1.6)	1m 43s
test-dbt-versions (1.8)	1m 32s
test-dbt-versions (1.3)	1m 34s
test-dbt-versions (1.5)	1m 36s
test-vscode-e2e	-1s
cicd-tests-windows	7m 16s
doc-tests	32s
style-and-cicd-tests (3.11)	13m 28s
style-and-cicd-tests (3.9)	14m 47s
migration-test	46s
style-and-cicd-tests (3.12)	14m 54s
style-and-cicd-tests (3.13)	14m 20s
engine-tests-docker (trino)	8m 19s
engine-tests-docker (spark)	4m 52s
engine-tests-docker (duckdb)	2m 34s
engine-tests-docker (postgres)	2m 32s
style-and-cicd-tests (3.10)	15m 13s
engine-tests-docker (risingwave)	2m 53s
engine-tests-docker (mysql)	2m 31s
engine-tests-docker (mssql)	2m 26s
engine-tests-docker (clickhouse)	3m 26s
ui-test	0s
ui-style	0s
engine-tests-cloud	-1s
	2h 4m 55s

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