[SRU] Enable frame-pointer on Noble in update-notifier

[Julian Andres Klode]

[ Impact ]
In order to help developers with profiling, Ubuntu enabled frame-pointers for packages in the main archive.

https://ubuntu.com/blog/ubuntu-performance-engineering-with-frame-pointers-by-default

The `Affects` packages were missed due to the packaging issues. These have been fixed on Oracular and can now be ported to Noble.

[ Test Plan ]

Look at the DW_AT_producer in the associated debug ELF file for flags. -fno-omit-frame-pointer should be present after the fix.

The following scripts can be used as a reference
https://gist.github.com/julian-klode/85e55553f85c410a1b856a93dce77208
https://gist.github.com/julian-klode/95818246eaef0ac6a54588f7f368e25c

The autopkgtests cover the Python parts, so we should start update-notifier on a real system and see that it still starts. We don't expect any regressions from compiler flag changes, so I don't want to do a whole bunch of UI tests or anything.

[ Where problems could occur ]

No source changes are made. The packaging fixes have enabled other security hardening flags. This could have unintended effects.

[ Other Info ]

changes in dpkg have been made to make sure frame-pointers are not enabled on s390x and ppc64el.

Bug reference with similar SRU - https://bugs.launchpad.net/ubuntu/+source/ipvsadm/+bug/2071949

[Julian Andres Klode (juliank)]

Uploaded

[Timo Aaltonen (tjaalton)]

Hello Julian, or anyone else affected,

Accepted update-notifier into noble-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/update-notifier/3.192.68.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed-noble to verification-done-noble. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-noble. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.