Final Robust CI/CD Fixes

- Switched Linux build runner to ubuntu-22.04 for better glibc compatibility.
- Improved OnionShare URL detection in ci/test-e2e.sh using grep -a and extra stabilization.
- Explicitly set TOR_BINARY environment variable in voxvera/cli.py when using bundled Tor.
- Standardized artifact handling and release flattening in binaries.yml.

.github/workflows/binaries.yml

@@ -14,9 +14,9 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest]
+        os: [ubuntu-22.04, windows-latest, macos-latest]
         include:
-          - os: ubuntu-latest
+          - os: ubuntu-22.04
             artifact_name: voxvera-linux
           - os: windows-latest
             artifact_name: voxvera-windows.exe
@@ -57,7 +57,7 @@ jobs:
             voxvera/cli.py
 
       - name: Build .deb (Linux)
-        if: matrix.os == 'ubuntu-latest'
+        if: matrix.os == 'ubuntu-22.04'
         run: |
           mkdir -p voxvera/resources/bin
           cp dist/${{ matrix.artifact_name }} voxvera/resources/bin/voxvera-linux-x86_64
@@ -65,7 +65,7 @@ jobs:
           ./packaging/build_deb.sh dist/${{ matrix.artifact_name }}
 
       - name: Build AppImage (Linux)
-        if: matrix.os == 'ubuntu-latest'
+        if: matrix.os == 'ubuntu-22.04'
         run: |
           mkdir -p voxvera/resources/bin
           cp dist/${{ matrix.artifact_name }} voxvera/resources/bin/voxvera-linux-x86_64
@@ -73,7 +73,7 @@ jobs:
           ./packaging/build_appimage.sh dist/${{ matrix.artifact_name }}
 
       - name: Build Flatpak (Linux)
-        if: matrix.os == 'ubuntu-latest'
+        if: matrix.os == 'ubuntu-22.04'
         run: |
           mkdir -p voxvera/resources/bin
           cp dist/${{ matrix.artifact_name }} voxvera/resources/bin/voxvera-linux-x86_64