Sankey Expecting 'DQUOTE', got 'ESCAPED_TEXT'

[mtrakal]

Description

when in Target / source is filled non-ascii code (like country specific codes) it fails. Foe example Czech ěščřžýáíé chars are failing.

Steps to reproduce

```mermaid
sankey-beta
"Source ěščřžýáíé","Target ěščřžýáíé",1
"Source ěščřžýáíé","Target 2",1
"Source ěščřžýáíé","Target 3",3

Screenshots

No response

Code Sample

sankey-beta
"Source ěščřžýáíé","Target ěščřžýáíé",1
"Source ěščřžýáíé","Target 2",1
"Source ěščřžýáíé","Target 3",3

Loading

Setup

• Mermaid version: any (11.x)
• Browser and Version: [Chrome, Edge, Firefox]: any

Suggested Solutions

• accept country specific chars as valid input

Additional Context

Playground: https://mermaid.live/edit#pako:eNqVkDEOgkAURK9Cfo2F0m1ta4WV-c2X_QLB3SXrbkEIR_AAxorSwiNoA9zLjUYrC-1mMm-SybSQGckg4EC64ma2ZUeoEVLjbcbReJ768TidpvtwG_rhOlwQYoQ12Zzd93T-c33xF50Ek0AMiq2iUobJLeooQnAFK0YQQUqyFQLqLnDknUkbnYFw1nMM1vi8ALGj_SE4X0tyvCwpt6TeSE16Y4z6QCxLZ-zqddDzp-4Bt7B_IA