db: increase default mdbx max size (#2868)

Author: canepat

silkworm/db/datastore/kvdb/mdbx.hpp

@@ -369,7 +369,7 @@ struct EnvConfig {
     bool read_ahead{false};             // Whether to enable mdbx read ahead
     bool write_map{false};              // Whether to enable mdbx write map
     size_t page_size{os::page_size()};  // Mdbx page size
-    size_t max_size{3_Tebi};            // Mdbx max map size
+    size_t max_size{4_Tebi};            // Mdbx max map size
     size_t growth_size{2_Gibi};         // Increment size for each extension
     uint32_t max_tables{256};           // Default max number of named tables
     uint32_t max_readers{100};          // Default max number of readers