Bug#1092243: Acknowledgement (reverse dependencies of icu 76.1 ftbfs with linking errors)

[Matthias Klose]

that's caused by an upstream change from 75.1 to 76.1. Reverting that 
let's packages build again.

see
http://launchpadlibrarian.net/768919781/icu_76.1-1ubuntu1_76.1-1ubuntu2.diff.gz