upgrade to beancount v3

commands/budget

@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 from beancount import loader
-from beancount.query import query
+from beanquery import query
 from beancount.core.data import Custom
 from beancount.core.amount import Amount, add, sub
 from beancount.parser import printer
@@ -61,7 +61,7 @@ WHERE account ~ \"Equity:(LloguerMiquel|FacturesUtilitatsMiquel)\""""
         entries, options, equity_query)
     equity = {}
     for row in rrows:
-        equity[row.account] = row.sum_position
+        equity[row[0]] = row[1]
     return equity
 
 
@@ -77,7 +77,7 @@ WHERE account ~ \"Expenses\" OR account ~ \"Liabilities\""""
         entries, options, expenses_query)
     expenses = {}
     for row in rrows:
-        expenses[row.account] = row.sum_position
+        expenses[row[0]] = row[1]
     return expenses