Bug#1114117: gcc-doc-default needs updating for GCC 15

[Bastian Germann]

Control: tags -1 patch

I see that this is fixed in git:
https://salsa.debian.org/lumag/gcc-doc-defaults/-/tree/debian/5%2529

What is hindering this to be uploaded? If it is the lack of a sponsor, I
can upload for you.