Add deploy nuget workflow

.github/workflows/deploy-nuget.yml

@@ -0,0 +1,64 @@
+name: deploy-nuget
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'Tag to publish v[0-9]+.[0-9]+.[0-9]+*'
+        required: true
+        default: ''
+        type: string
+  push:
+    tags: 
+      - "v[0-9]+.[0-9]+.[0-9]+*"
+
+jobs:
+  get-version:
+    name: Get version to deploy
+    runs-on: ubuntu-latest
+    env:
+      VERSION: 1.0.0
+    outputs:
+      VERSION: ${{ steps.output-version.outputs.VERSION }}
+    steps:
+    - name: Set tag from input
+      if: ${{ github.event.inputs.version != '' }}
+      env:
+        TAG: ${{ github.event.inputs.version }}
+      run: echo "VERSION=${TAG#v}" >> $GITHUB_ENV
+
+    - name: Set version variable from tag
+      if: ${{ github.ref_type == 'tag' }}
+      env:
+        TAG: ${{ github.ref_name }}
+      run: echo "VERSION=${TAG#v}" >> $GITHUB_ENV
+
+    - name: VERSION to job output
+      id: output-version
+      run: |
+        echo "VERSION=${{ env.VERSION }}" >> $GITHUB_OUTPUT
+
+  deploy-nuget:
+    name: Deploy mudblazor sasscompiler nuget to nuget.org
+    needs: get-version
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v3
+      with:
+        ref: 'refs/tags/v${{ needs.get-version.outputs.VERSION }}'
+    - name: Setup dotnet version
+      uses: actions/setup-dotnet@v3
+      with:
+        dotnet-version: |
+          6.0.x
+          7.0.x
+    - name: Pack nuget package
+      run: dotnet pack -c Release --output nupkgs /p:PackageVersion=${{ needs.get-version.outputs.VERSION }} /p:AssemblyVersion=${{ needs.get-version.outputs.VERSION }} /p:Version=${{ needs.get-version.outputs.VERSION }}
+      working-directory: ./AspNetCore.SassCompiler
+    - name: Publish nuget package
+      run: dotnet nuget push nupkgs/*.nupkg -k ${{ secrets.NUGET_KEY }} -s https://api.nuget.org/v3/index.json --skip-duplicate
+      working-directory: ./AspNetCore.SassCompiler
+    - name: Push nuget generated package symbols
+      run: dotnet nuget push nupkgs/*.snupkg -k ${{ secrets.NUGET_KEY }} -s https://api.nuget.org/v3/index.json --skip-duplicate
+      working-directory: ./AspNetCore.SassCompiler