fix(appium): raise connectionRetryTimeout to 5min, enable test retries

The Sauce Labs Android emulator cold-start regularly exceeds
webdriverio's 2-minute connectionRetryTimeout default, producing
UND_ERR_HEADERS_TIMEOUT on `POST /wd/hub/session` and failing the
suite before any test runs. Bump the default for the Appium helper
to 5 minutes (mobile cloud grids are slow by nature).

Also re-enable Mocha's `this.retries(1)` in the Appium test suite —
already attempted but commented out — so a single transient Sauce
Labs hiccup no longer reds the whole job.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: DavertMik

lib/helper/Appium.js

@@ -220,6 +220,9 @@ class Appium extends Webdriver {
       deprecationWarnings: false,
       restart: true,
       manualStart: false,
+      // Mobile emulator/device cold starts (esp. on cloud grids like Sauce Labs)
+      // routinely exceed webdriverio's 2-minute default. Bump to 5 min.
+      connectionRetryTimeout: 300000, // ms
       timeouts: {
         script: 0, // ms
       },

test/helper/Appium_test.js

@@ -21,7 +21,7 @@ const apk_path = 'storage:filename=selendroid-test-app-0.17.0.apk'
 const smallWait = 3
 
 describe('Appium', function () {
-  // this.retries(1);
+  this.retries(1)
   this.timeout(0)
 
   before(async () => {