ci: install the chrome signing key without apt-key

Assisted-by: Claude Opus 5.5

.github/workflows/integrationci.yaml

@@ -106,8 +106,8 @@ jobs:
       - name: webdriver
         if: matrix.suite == 'callbackauthn' || matrix.suite == 'basepath'
         run: |
-          wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | sudo apt-key add -
-          echo "deb http://dl.google.com/linux/chrome/deb/ stable main" | sudo tee -a /etc/apt/sources.list.d/google-chrome.list
+          wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | sudo gpg --dearmor --yes -o /usr/share/keyrings/google-chrome.gpg
+          echo "deb [arch=amd64 signed-by=/usr/share/keyrings/google-chrome.gpg] http://dl.google.com/linux/chrome/deb/ stable main" | sudo tee -a /etc/apt/sources.list.d/google-chrome.list
           sudo apt-get update -qqy
           sudo apt-get -qqy install google-chrome-stable
           CHROME_VERSION=$(google-chrome-stable --version)