chore: revert prerelease to GH packages

GH packages in dotnet org cannot be made visible to public due to org policy.

.github/workflows/ci.yml

@@ -82,31 +82,6 @@ jobs:
       with:
         commit_message: 'test(snapshot): update snapshots ${{ github.sha }} for ${{ matrix.os }}'
 
-  publish-github-packages:
-    if: github.ref == 'refs/heads/main'
-    needs: [test, snapshot]
-    runs-on: ubuntu-latest
-    permissions:
-      packages: write
-    steps:
-    - uses: actions/checkout@v4
-      with:
-        fetch-depth: 0
-
-    - id: version
-      uses: paulhatch/[email protected]
-      with:
-        version_format: ${major}.${minor}.${patch}-preview.${increment}
-
-    - uses: ./.github/actions/build
-
-    - name: dotnet pack
-      run: dotnet pack -c Release /p:Version=${{ steps.version.outputs.version }} -o drop/nuget
-
-    - name: dotnet nuget push
-      run: |
-        dotnet nuget push drop/nuget/*.nupkg --api-key "${{ secrets.GITHUB_TOKEN }}" --skip-duplicate --source https://nuget.pkg.github.com/dotnet/index.json
-
   publish-docs:
     if: github.ref == 'refs/heads/main'
     needs: [test, snapshot]