Removed the canary channel from CI to run the emulator on stable versions.

* Added the emulator boot timeout so that emulator can boot if it takes long in booting.

.github/workflows/ci.yml

@@ -67,7 +67,7 @@ jobs:
           disable-animations: false
           heap-size: 512M
           emulator-options: -no-window -gpu swiftshader_indirect -noaudio -no-boot-anim -camera-back none
-          channel: canary
+          emulator-boot-timeout: 1200
           script: echo "Generated AVD snapshot for caching."
 
       - name: create instrumentation coverage
@@ -86,7 +86,7 @@ jobs:
           sdcard-path-or-size: 2048M
           disable-animations: true
           heap-size: 512M
-          channel: canary
+          emulator-boot-timeout: 1200
           script: bash contrib/instrumentation.sh
 
       - name: Test custom app
@@ -103,6 +103,7 @@ jobs:
           force-avd-creation: true
           sdcard-path-or-size: 2048M
           disable-animations: true
+          emulator-boot-timeout: 1200
           heap-size: 512M
           script: bash contrib/instrumentation-customapps.sh