need to call powershell function .ps1 of remote repo from github actions workflow

Question

I have my powershell function that takes 2 parameters and returns a value in public repo betech branch feature365 here:

https://github.com/knowyrtech/betech/blob/feature365/scripts/xml-functions.ps1

function Get-XMLKeyValue {
  param (
    [Parameter(Mandatory = $true)]
    [string] $XmlPath,

    [Parameter(Mandatory = $true)]
    [string] $Key
  )

  $value = (Select-Xml -LiteralPath $XmlPath -XPath "//setParameter[@name='$Key']").Node.Value
  Write-Output $value
}

In another public repo actions_param I have github action workflow that needs to call the xml-functions.ps1 function Get-XMLKeyValue and get back the return value:

https://github.com/knowyrtech/actions_param/blob/main/.github/workflows/main.yaml

name: main xml read

on:
  push:
    branches: main
    
jobs:

  extract_key_value:
    runs-on: windows-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v2

      - name: Extract XML Key-Value
        id: extract-xml-value
        uses: ./betech/scripts/xml-functions.ps1@feature365
        with:
          xmlPath: ${{ env.XML_PATH }}
          key: ${{ env.KEY_NAME }}

      - name: Show Extracted Key-Value
        run: |
          echo "Extracted Key-Value: ${{ steps.extract-xml-value.outputs.value }}"

Running the action gets me the below error:

Can't find 'action.yml', 'action.yaml' or 'Dockerfile' under 'D:\a\actions_param\actions_param\betech\scripts\xml-functions.ps1@feature365'. Did you forget to run actions/checkout before running your local action?

I'm not sure if we can call the ps1 file directly. If not how can I reuse the function to get me the values? I'm new to github actions. Kindly suggest.