* Add 'v' hotkey to open DevTools in the browser

This reverts commit 98a96189.

Rolls in several fixes to web tooling, including better handling of absolute file imports. Updates to latest vm service to unblock null safety mode query
Co-authored-by: Gary Roumanis <grouma@google.com>
Co-authored-by: Anna Gringauze <annagrin@google.com>

* update pinned null safety deps

* run update-packages

* add http dep to devicelab package

* rerun update-packages

Updates all null safe dependencies to versions that allow 2.10 stable and 2.11 dev releases.

Also updates flutter_goldens and flutter_goldens_client to allow 2.11 dev.

Remove fake image implementations, add createTestImage to flutter_test

[versions] update to latest source span and roll engine to  4b8477d11573d233e6791204191c0090f733b05d (#66136)

Update to latest dwds, file-nullsafety, and process-nullsafety for #62886

This reverts commit adc9dde3.

- Fixed issue where `FallbackDiscovery` would hold on to a `VmService` when launching on iOS devices, causing DDS to fail to start
- Fixed `flutter drive` case where DDS is already running in another flutter_tools instance

This reverts commit c46aa360.

Revert "Reland "Add support for Dart Development Service (DDS) in Flutter Tools (#61276)" (#61975)" (#61993)

This reverts commit f7a1c87f.

This reverts commit 4867f593.

Revert "Reland "Add support for Dart Development Service (DDS) in Flutter Tools (#61276)" (#61882)" (#61909)

This reverts commit 895b7ef6.

This reverts commit 38fe8873.