database/sql: Add empty driver name check on Register method

Fixes: #44467

src/database/sql/sql.go

@@ -47,6 +47,9 @@ func Register(name string, driver driver.Driver) {
 	if driver == nil {
 		panic("sql: Register driver is nil")
 	}
+	if name == "" {
+		panic("sq: Driver name is empty")
+	}
 	if _, dup := drivers[name]; dup {
 		panic("sql: Register called twice for driver " + name)
 	}