build on ubuntu 20.04 to fix missing glibc when using appimage on old…

…er ubuntu systems

.github/workflows/build.yaml

@@ -12,15 +12,15 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        platform: [ubuntu-latest]
+        platform: [ubuntu-20.04]
     runs-on: ${{ matrix.platform }}
 
     steps:
       - name: Checkout repository
         uses: actions/checkout@v4
 
       - name: Install dependencies (ubuntu only)
-        if: matrix.platform == 'ubuntu-latest'
+        if: matrix.platform == 'ubuntu-20.04'
         run: |
           sudo apt-get update
           sudo apt-get install -y libgtk-3-dev libwebkit2gtk-4.0-dev libayatana-appindicator3-dev librsvg2-dev
@@ -49,4 +49,4 @@ jobs:
         uses: actions/upload-artifact@v4
         with:
           name: note.rs_${{runner.os}}
-          path: 'src-tauri/target/release/bundle/appimage/*.AppImage'
+          path: 'src-tauri/target/release/bundle/appimage/*.AppImage'