Test using Maestro CLI + emulator instead of Cloud (#4092)

Add Maestro local CI workflow:
- Remove previous Maestro Cloud.
- Use an emulator with Pixel 7 Pro - API 35.
- Allow to record several videos in the background to verify the run.
- Upload test results.
- Allow either dispatching a new flow, running the 'build apk' job or run with a PR after the 'Build APK' flow has succeeded.

.github/workflows/scripts/maestro/local-recording.sh

@@ -0,0 +1,19 @@
+#!/bin/sh
+
+#
+# Copyright 2024 New Vector Ltd.
+#
+# SPDX-License-Identifier: AGPL-3.0-only
+# Please see LICENSE in the repository root for full details.
+#
+
+COUNT=0
+mkdir -p /data/local/tmp/recordings;
+FILENAME=/data/local/tmp/recordings/testRecording$COUNT.mp4
+while true
+ do
+   ((COUNT++))
+   FILENAME=/data/local/tmp/recordings/testRecording$COUNT.mp4
+   echo "\nRecording video file #$COUNT"
+   screenrecord --bugreport --bit-rate=16m --size 720x1280 $FILENAME
+ done

.github/workflows/scripts/maestro/maestro-local-with-screen-recording.sh

@@ -0,0 +1,36 @@
+#!/bin/sh
+
+#
+# Copyright 2024 New Vector Ltd.
+#
+# SPDX-License-Identifier: AGPL-3.0-only
+# Please see LICENSE in the repository root for full details.
+#
+
+adb install -r $1
+set -x
+echo "Starting the screen recording..."
+adb push .github/workflows/scripts/maestro/local-recording.sh /data/local/tmp/
+adb shell "chmod +x /data/local/tmp/local-recording.sh"
+adb shell "/data/local/tmp/local-recording.sh & echo \$! > /data/local/tmp/screenrecord_pid.txt" &
+set +e
+~/.maestro/bin/maestro test .maestro/allTests.yaml
+TEST_STATUS=$?
+echo "Test run completed with status $TEST_STATUS"
+
+# Stop the screen recording loop
+SCRIPT_PID=$(adb shell "cat /data/local/tmp/screenrecord_pid.txt")
+adb shell "kill -2 $SCRIPT_PID"
+
+# Get the PID of the screen recording process
+SCREENRECORD_PID=$(adb shell ps | grep screenrecord | awk '{print $2}')
+# Wait for the screen recording process to exit
+while [ ! -z $SCREENRECORD_PID ]; do
+  echo "Waiting for screen recording ($SCREENRECORD_PID) to finish..."
+  adb shell "kill -2 $SCREENRECORD_PID"
+  sleep 1
+  SCREENRECORD_PID=$(adb shell ps | grep screenrecord | awk '{print $2}')
+done
+
+adb pull /data/local/tmp/recordings/ ~/.maestro/tests/
+exit $TEST_STATUS