[CK] upgrade CI to rocm7.13 as default compiler (#7612)
## Motivation
Upgrade the default docker and compiler version in CI to rocm7.13.
In order to pass all the checks I had to also clean up a lot of
non-ascii characters in the source code comments and modify a couple of
tests that were affected by a new compiler logic.
## Technical Details
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## Test Plan
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## Test Result
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## Submission Checklist
- [ ] Look over the contributing guidelines at
https://github.com/ROCm/ROCm/blob/develop/CONTRIBUTING.md#pull-requests.
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Co-authored-by: Aviral Goel <aviral.goel@amd.com>
Resolves R_X86_64_32 relocation out of range errors in grouped conv2d instances
by splitting debug information into separate .dwo files.
Add explicit cast to avoid signed/unsigned comparison warning.
