core/txpool/blobpool: reduce default database cap for rollout (#29090)

xcore/txpool/blobpool: reduce default database cap for rollout

core/txpool/blobpool/config.go

@@ -30,8 +30,8 @@ type Config struct {
 // DefaultConfig contains the default configurations for the transaction pool.
 var DefaultConfig = Config{
 	Datadir:   "blobpool",
-	Datacap:   10 * 1024 * 1024 * 1024,
-	PriceBump: 100, // either have patience or be aggressive, no mushy ground
+	Datacap:   10 * 1024 * 1024 * 1024 / 4, // TODO(karalabe): /4 handicap for rollout, gradually bump back up to 10GB
+	PriceBump: 100,                         // either have patience or be aggressive, no mushy ground
 }
 
 // sanitize checks the provided user configurations and changes anything that's