release draft workflow fix (#777)

Author: lachmatt

.github/workflows/release-draft.yml

@@ -15,7 +15,7 @@ jobs:
     timeout-minutes: 30
     env:
       baseImage: ${{ matrix.baseImage }}
-      dotnetSdkVersion: 8.0.200
+      dotnetSdkVersion: 7.0.406
     steps:
     - uses: actions/[email protected]
     - name: Build Docker image