package/unixodbc: bump to version 2.3.9

- libedit is an optional dependency since version 2.3.9 and
  https://github.com/lurcher/unixODBC/commit/6ebf06767e398dc0b7d4aa090e20f7814c2ae383


- Update indentation in hash file (two spaces)

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>