fix: higher default timeout for database download

Depending on region and network conditions, 120s was not enough time for
many clients, leading to some complaints. Raise the default timeout to
five minutes.

Signed-off-by: Will Murphy <willmurphyscode@users.noreply.github.com>

cmd/grype/cli/options/database.go

@@ -30,7 +30,7 @@ var _ interface {
 const (
 	defaultMaxDBAge               time.Duration = time.Hour * 24 * 5
 	defaultUpdateAvailableTimeout               = time.Second * 30
-	defaultUpdateDownloadTimeout                = time.Second * 120
+	defaultUpdateDownloadTimeout                = time.Second * 300
 )
 
 func DefaultDatabase(id clio.Identification) Database {