install webkit2gtk-4.1 with Flatpak

.github/workflows/build-linux.yml

@@ -34,11 +34,17 @@ jobs:
       - name: Install dependencies
         run: |
           sudo apt-get update
-          sudo apt-get install -y file build-essential pkg-config libwebkit2gtk-4.0-dev
+          sudo apt-get install -y file build-essential pkg-config
           sudo apt-get install -y libunwind-dev libstdc++-12-dev libgstreamer1.0-dev libgstreamer-plugins-base1.0-d cmake
           sudo apt-get install -y libgtk-3-0 libblkid1 liblzma5
           sudo apt-get install -y libpcap-dev libgtk-3-dev libayatana-appindicator3-dev ruby ruby-dev && sudo gem install bundler -v 2.2.26
 
+      - name: Install Flatpak and webkit2gtk-4.1
+        run: |
+          sudo apt-get install -y flatpak
+          sudo flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
+          sudo flatpak install -y flathub org.webkit.WebKit
+
       - uses: actions/setup-go@v5
         with:
           go-version-file: "go.mod"