snapper: libboost_thread.so.1.76.0 (no such package)

When I try to install snapper, it fails because it cannot find libboost 1.76. The repository contains libboost 1.77:

Here is a Dockerfile which reproduces the issue on edge.

Output:

fetch https://dl-cdn.alpinelinux.org/alpine/edge/main/x86_64/APKINDEX.tar.gz
fetch https://dl-cdn.alpinelinux.org/alpine/edge/community/x86_64/APKINDEX.tar.gz
fetch https://dl-cdn.alpinelinux.org/alpine/edge/testing/x86_64/APKINDEX.tar.gz
ERROR: unable to select packages:
  so:libboost_thread.so.1.76.0 (no such package):
    required by: snapper-0.9.1-r0[so:libboost_thread.so.1.76.0]