Issues with Nordic Characters

Hi !
My action looks like this:
```
- name: Deploy Post-script Database
uses: Azure/sql-action@v1
with:
server-name: ${{steps.ServerName}}
connection-string: ${{...sql-pipelineconfig-connectionstring}}
sql-file: ${{ github.workspace }}\Path\to\script\file.sql
```

The issue I am facing is that nordic characters - ÅÆØ - are replaced by garbage symbols, E.g:
'Kårstø' becomes 'KÃ…RSTØ'

The Collation is set correctly on the Azure SQL database, and we can run the script manually in in SQL Server Management Studio to get the correct output.

Tried a couple of different things, among others verifying database collation, column types, that the generated files have the correct UTF encoding.
The last thing I can think of is that it is possibly an issue with the action

Inizia riproducendo il workflow Azure/sql-action@v1 con un sql-file contenente i caratteri ÅÆØ, quindi esamina la gestione di quel file da parte dell’action. Il lavoro è completato quando l’SQL distribuito conserva i caratteri nordici come avviene durante l’esecuzione manuale in SQL Server Management Studio.

Scritto dal modello di indicizzazione a partire dal testo della issue.