[rocm-libraries] ROCm/rocm-libraries#7955 (commit c87a40f)

[ck] Updated CK Tile documentation to use mermaid diagrams
 (#7955)

## Motivation

There were mermaid diagrams in the CK Tile doc that were converted to
svg. However, there is an extension for mermaid diagrams. The conf.py
and requirements.in have been updated to use that extension instead of
the svg files.