First Plucky Puffin test rebuild

[Matthias Klose]

The first test rebuild of Plucky Puffin was started on December 21, 2024 
for all architectures and all components. The rebuild is finished for 
the main component on all architectures except riscv64, and still 
running for universe and multiverse.

Results (please also look at the superseded builds) can be found at:

https://people.canonical.com/~ginggs/ftbfs-report/test-rebuild-20241218-plucky-plucky.html

Additional build failures for packages in plucky-proposed (not yet
in Plucky) can be found at:

http://qa.ubuntuwire.com/ftbfs/

Please help with fixing the build failures.

There are also two test rebuilds for upcoming toolchain changes (glibc 
2.41 and GCC 15), please see

https://people.canonical.com/~ginggs/ftbfs-report/test-rebuild-20241218-plucky-glibc-plucky.html
https://people.canonical.com/~ginggs/ftbfs-report/test-rebuild-20241218-plucky-gcc15-plucky.html

As a bonus, we tried to build the main component of plucky using LLVM, see

https://people.canonical.com/~ginggs/ftbfs-report/test-rebuild-20241219-plucky-llvm-plucky.html

Happy New Year,
Matthias