finance/sql-ledger: Update version 3.2.5=>3.2.6

• Fix script installation as executable [1]

PR: 220545 [1]
Submitted by: frankenbox@live.com [1]
Relnotes: http://www.sql-ledger.org/cgi-bin/nav.pl?page=misc/whatsnew.html&title=What%27s%20New