ci: fix ci

ref: https://askubuntu.com/questions/496549/error-you-must-put-some-source-uris-in-your-sources-list

Author: flylai

.github/workflows/build-plugin-qt6.yml

@@ -52,7 +52,8 @@ jobs:
         uses: actions/checkout@v4
       - name: Install build dependencies
         run: |
-          sudo sed -i 's/^#\s*deb-src/deb-src/' /etc/apt/sources.list # add src repos
+          # https://askubuntu.com/questions/496549/error-you-must-put-some-source-uris-in-your-sources-list
+          sudo sed -Ei 's/^Types: deb$/Types: deb deb-src/' /etc/apt/sources.list.d/ubuntu.sources
           sudo apt-get update
           sudo apt-get install -y \
             build-essential \