Announcing Apptainer 1.5.3

[Dave Dykstra]

Apptainer 1.5.3 is now available. The changes are minor, mostly affect building images with special circumstances. One change is that if the `ptrace()` system call doesn't work, apptainer build doesn't try to make the image using PRoot. The other is that the fakeroot command (used mostly during builds, when subuid mapping is not available) now includes binding `getopt` from the host, to make it work with EL10 and Fedora base containers which no longer have it.

For complete details please see
https://github.com/apptainer/apptainer/releases/tag/v1.5.3

Dave