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

Beginne damit, den Azure/sql-action@v1-Workflow mit einer sql-file zu reproduzieren, die die Zeichen ÅÆØ enthält, und untersuche dann, wie die Action diese Datei verarbeitet. Als erledigt gilt die Aufgabe, wenn das bereitgestellte SQL die nordischen Zeichen so erhält wie bei manueller Ausführung in SQL Server Management Studio.

Vom Indexierungsmodell aus dem Issue-Text verfasst.