Improve Linux WebKit fallback configuration

Updated the GitHub Actions workflow to simplify package installation for WebKit dependencies on Ubuntu and removed explicit version pinning. Enhanced the Linux WebKit configuration in Rust to apply and log multiple environment variable fallbacks for better handling of EGL issues.

.github/workflows/tauri-build.yml

@@ -89,7 +89,9 @@ jobs:
         if: matrix.platform == 'ubuntu-22.04'
         run: |
           sudo apt-get update
-          sudo apt install \
+          sudo apt install -y \
+            libwebkit2gtk-4.1-0 \
+            libwebkit2gtk-4.1-dev \
             build-essential \
             curl \
             wget \
@@ -99,13 +101,6 @@ jobs:
             libayatana-appindicator3-dev \
             librsvg2-dev \
             openjdk-17-jre-headless
-          sudo apt install -y \
-            libwebkit2gtk-4.1-0=2.44.0-2 \
-            libwebkit2gtk-4.1-dev=2.44.0-2 \
-            libjavascriptcoregtk-4.1-0=2.44.0-2 \
-            libjavascriptcoregtk-4.1-dev=2.44.0-2 \
-            gir1.2-javascriptcoregtk-4.1=2.44.0-2 \
-            gir1.2-webkit2-4.1=2.44.0-2;
 
       - name: Setup Node.js
         uses: actions/setup-node@v4