make cache config available for OSS version (#40512)

enterprise/backend/src/metabase_enterprise/api/routes.clj

...se/backend/src/metabase_enterprise/caching/strategies.clj

...backend/test/metabase_enterprise/caching/caching_test.clj

src/metabase/api/caching.clj

src/metabase/api/routes.clj

src/metabase/util/cron.clj

test/metabase/api/caching_test.clj