RC1s of 26.0.1, 25.0.6 and 24.0.12

[sdtda]

@gonzalo.cao

My current instance of Nextlcoud is in 25.0.5 but updater only offers to me the 26.0.0 version.

uh, you are a lucky, Im in 25.0.5 but updater only offers me 25.0.6

I want v26 in stable channel!