ci(deps): update cric96/inline-mermaid action to v1.15.0

Author: renovate[bot]

.github/workflows/markdown-slides.yml

@@ -53,7 +53,7 @@ jobs:
         with:
           node-version-file: package.json
       - name: Transform and Inline Mermaid charts
-        uses: cric96/inline-mermaid@1.14.1
+        uses: cric96/inline-mermaid@1.15.0
         with:
           root-folder: slides-markdown/build
           config-file: slides-markdown/config.toml