new branch + more recent gcc?

Our kernelci builds are currently use gcc-10 and clang-17. We have 1
allmodconfig failure [1] that appears to be caused by the old gcc-10
compiler and doesn't reproduce with gcc-11 or later. Can we switch the
android builds to gcc-13 instead?

[1] https://linux.kernelci.org/build/android/branch/android14-6.1/kernel/android14-6.1.84_r00-129-g87fb1f2f1e795/

Also, we have a new kernel branch that we'd like to add to the testing:

repo: https://android.googlesource.com/kernel/common
branch: android15-6.1

Thanks.

-Todd