When retrying to connect to the device during app launch, don't uninstall the app first.

Latest test flake for https://github.com/flutter/flutter/issues/120808:
https://logs.chromium.org/logs/flutter/buildbucket/cr-buildbucket/8770202475999850785/+/u/run_hot_mode_dev_cycle_ios__benchmark/test_stdout

Shows that it uninstalled and then tried debugging and failed, which would make sense since the app wasn't installed anymore.
```
[2023-09-11 18:02:24.555646] [STDOUT] stdout: [   +6 ms] Lost connection to device. Trying to connect again...
[2023-09-11 18:02:24.556949] [STDOUT] stdout: [   +1 ms] executing: /opt/s/w/ir/x/w/recipe_cleanup/tmp53fs1szo/flutter sdk/bin/cache/artifacts/libimobiledevice/idevicesyslog -u 00008030-00144DA10185402E
[2023-09-11 18:02:24.557323] [STDOUT] stdout: [        ] executing: script -t 0 /dev/null /opt/s/w/ir/x/w/recipe_cleanup/tmp53fs1szo/flutter sdk/bin/cache/artifacts/ios-deploy/ios-deploy --id 00008030-00144DA10185402E --bundle build/ios/iphoneos/Flutter Gallery.app --app_deltas build/ios/app-delta --uninstall --noinstall --debug --no-wifi --args --enable-dart-profiling --disable-vm-service-publication --enable-checked-mode --verify-entry-points
[2023-09-11 18:02:24.578010] [STDOUT] stdout: [  +20 ms] [....] Waiting for iOS device to be connected
[2023-09-11 18:02:24.712631] [STDOUT] stdout: [ +134 ms] [....] Using 00008030-00144DA10185402E (N104AP, iPhone 11, iphoneos, arm64e, 16.2, 20C65) a.k.a. 'iPhone 11'.
[2023-09-11 18:02:24.712725] [STDOUT] stdout: [        ] ------ Uninstall phase ------
[2023-09-11 18:02:24.818293] [STDOUT] stdout: [ +105 ms] [ OK ] Uninstalled package with bundle id io.flutter.examples.gallery
[2023-09-11 18:02:24.906833] [STDOUT] stdout: [  +88 ms] ------ Debug phase ------
[2023-09-11 18:02:24.906924] [STDOUT] stdout: [        ] Starting debug of 00008030-00144DA10185402E (N104AP, iPhone 11, iphoneos, arm64e, 16.2, 20C65) a.k.a. 'iPhone 11' connected through USB...
[2023-09-11 18:02:25.285252] [STDOUT] stdout: [ +378 ms] [  0%] Looking up developer disk image
[2023-09-11 18:02:25.529937] [STDOUT] stdout: [ +244 ms] [ 90%] Mounting developer disk image
[2023-09-11 18:02:25.545261] [STDOUT] stdout: [  +15 ms] [ 95%] Developer disk image already mounted
[2023-09-11 18:02:25.587923] [STDOUT] stdout: [  +42 ms] Detected path to iOS debug symbols: "Symbol Path: /Users/swarming/Library/Developer/Xcode/iOS DeviceSupport/16.2 (20C65) arm64e/Symbols"
[2023-09-11 18:02:25.857177] [STDOUT] stdout: [ +269 ms] Script started, output file is /dev/null
[2023-09-11 18:02:25.857259] [STDOUT] stdout: [        ] Script done, output file is /dev/null
[2023-09-11 18:02:25.857511] [STDOUT] stdout: [        ] ios-deploy exited with code 0
[2023-09-11 18:02:25.858066] [STDOUT] stderr: [        ] Could not run build/ios/iphoneos/Flutter Gallery.app on 00008030-00144DA10185402E.
[2023-09-11 18:02:25.858130] [STDOUT] stderr: [        ] Try launching Xcode and selecting "Product > Run" to fix the problem:
[2023-09-11 18:02:25.858214] [STDOUT] stderr: [        ]   open ios/Runner.xcworkspace
[2023-09-11 18:02:25.858537] [STDOUT] stdout: [        ] Installing and launching... (completed in 52.4s)
[2023-09-11 18:02:25.858956] [STDOUT] stderr: [        ] Error launching application on iPhone 11.
```