Merge branch 'jb49761' into 'master'

Fix building with aarch64 multilib.

See merge request mer-core/python3-sniffio!2

Merge branch 'jb49642' into 'master'

Use macros for build and install.

See merge request mer-core/python3-sniffio!1

[sniffio] Don't package tests. JB#49282

[sniffio] Packaging for 1.1.0. JB#49282