Bump builder to 13.0.4

[Archana-Shinde1]

Checklist before submitting

• Did you read the contributor guide?
• Did you update any affected documentation?
• Did you write any tests to validate this change?

Description

Set GCC 12 as the default compiler for Power10 builds, while GCC 13 is used specifically to build the llama.cpp package with MMA support enabled for FP32, INT8, and INT4 quantization types.

Fixes # (issue).
open-ce/open-ce#1330
open-ce/open-ce#1368

Review process to land

1. All tests and other checks must succeed.
2. At least one maintainer must review and approve.
3. If any maintainer requests changes, they must be addressed.

[breezierglobal]

-C