Changes in builder to use gcc-12 and gcc-13

[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

Changes to detect GCC13 correctly for llama feedstock.

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.