fix: honor OS-level PAC configuration in system proxy mode (#7766)

.github/actions/tests/run-e2e-tests/action.yml

@@ -18,7 +18,7 @@ runs:
     - name: Run Playwright Tests (Ubuntu)
       if: inputs.os == 'ubuntu'
       shell: bash
-      run: xvfb-run npm run test:e2e
+      run: xvfb-run dbus-run-session -- npm run test:e2e
 
     - name: Run Playwright Tests
       if: inputs.os != 'ubuntu'

.github/workflows/tests-linux.yml

@@ -59,7 +59,8 @@ jobs:
           sudo apt-get update
           sudo apt-get --no-install-recommends install -y \
             libglib2.0-0 libnss3 libdbus-1-3 libatk1.0-0 libatk-bridge2.0-0 libcups2 libgtk-3-0 libasound2t64 \
-            xvfb
+            xvfb \
+            gsettings-desktop-schemas dbus-x11
 
       - name: Setup Node Dependencies
         uses: ./.github/actions/common/setup-node-deps