Use correct api key name

Author: Freymaurer

.github/workflows/ci.yml

@@ -32,7 +32,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: build-test
     env:
-      NUGET_API_KEY: ${{ secrets.NUGET_API_KEY }}
+      NUGET_API_KEY: ${{ secrets.NUGET_KEY }}
     steps:
       - name: Checkout
         uses: actions/checkout@v4