feat(cache): organization (#8903)

# Which Problems Are Solved

Organizations are ofter searched for by ID or primary domain. This
results in many redundant queries, resulting in a performance impact.

# How the Problems Are Solved

Cache Organizaion objects by ID and primary domain.

# Additional Changes

- Adjust integration test config to use all types of cache.
- Adjust integration test lifetimes so the pruner has something to do
while the tests run.

# Additional Context

- Closes #8865
- After #8902

internal/cache/connector/connector.go

@@ -19,8 +19,9 @@ type CachesConfig struct {
 		Postgres pg.Config
 		Redis    redis.Config
 	}
-	Instance   *cache.Config
-	Milestones *cache.Config
+	Instance     *cache.Config
+	Milestones   *cache.Config
+	Organization *cache.Config
 }
 
 type Connectors struct {