Apptainer 1.3.5 Released

[Dave Dykstra]

Apptainer 1.3.5 is now available:
https://github.com/apptainer/apptainer/releases/tag/v1.3.5

This is a bug fix and minor improvement release. Please read the release
notes, build and test it in your environment and report problems to
https://github.com/apptainer/apptainer/issues

Questions can be raised at dis...@apptainer.org or on the Apptainer
#general Slack channel.

Apptainer 1.3.5 Release Notes:

- Fix a regression introduced in 1.3.4 that overwrote existing
standard /.singularity.d files such as runscript in container images
even if they had been modified.
- Skip attempting to bind inaccessible mount points when handling the
mount hostfs = yes configuration option.
- Support parsing nested variables defined inside %arguments section
of definition files.
- Ignore invalid environment variables when pulling oci/docker
containers.

Dave