Azure deployment fails with: 'fatal: detected dubious ownership in repository at'

I recommend using the steps below:-

Make sure you run this command to add the repository in the safe list like below:-

git config --global --add safe.directory 'C:Userssid24desaisourcereposWebApplication6'

And then try pushing your code again by adding correct git remote url like below:-

git remote -v

git remote set-url origin https://github.com/sid24desai/WebApplication6

And in order to resolve the error Check this SO thread answer by Stinn and halt9k

Then I tried deploying a sample .NET application in Azure Web app with .NET 6.0 framework and it got deployed successfully like below:-

My github action workflow:-

name: Build and deploy ASP.Net Core app to Azure Web App - valleywebapp832

on:
  push:
    branches:
      - master
  workflow_dispatch:

jobs:
  build:
    runs-on: windows-latest

    steps:
      - uses: actions/checkout@v2

      - name: Set up .NET Core
        uses: actions/setup-dotnet@v1
        with:
          dotnet-version: '6.0.x'
          include-prerelease: true

      - name: Build with dotnet
        run: dotnet build --configuration Release

      - name: dotnet publish
        run: dotnet publish -c Release -o ${{env.DOTNET_ROOT}}/myapp

      - name: Upload artifact for deployment job
        uses: actions/upload-artifact@v2
        with:
          name: .net-app
          path: ${{env.DOTNET_ROOT}}/myapp

  deploy:
    runs-on: windows-latest
    needs: build
    environment:
      name: 'Production'
      url: ${{ steps.deploy-to-webapp.outputs.webapp-url }}

    steps:
      - name: Download artifact from build job
        uses: actions/download-artifact@v2
        with:
          name: .net-app

      - name: Deploy to Azure Web App
        id: deploy-to-webapp
        uses: azure/webapps-deploy@v2
        with:
          app-name: 'valleywebapp832'
          slot-name: 'Production'
          publish-profile: ${{ secrets.AZUREAPPSERVICE_PUBLISHPROFILE_CD4EC59DD26349C09FBA41C085A9BEBF }}
          package: .