Update to 0.26.10

[Jeanluc74]

Hello,

thank you for the nice gem.
At the moment version 0.26.* is locked at 0.26.4, the last minor version of decidim 0.26 is 0.26.10, can you update it?

Thank you,

Gian Luca

[ferblape]

Hi Gian Luca, if you could send a PR we'd be happy to accept it