Roll dependendencies

This rolls depdendencies to latest using
flutter update-packages --force-upgrade

This change includes three code changes:

* Removes charcode from the dependencies allowlist since it no longer
  appears in the transitive closure of dependencies of the flutter,
  flutter_test, flutter_driver, flutter_localizations, and
  integration_test packages.

* Uses Resolver.create instead of the deprecated Resolver constructor.
  The default Resolver constructor has been deprecated in favour of the
  static Resolver.create() factory function, which unfortunately happens
  to be async. Propagated the async-ness up the chain.
  This change was partially reverted and the deprecation ignored in this
  patch until package:coverage can be rolled internally at Google.

* Eliminates the use of the deprecated packagesPath parameter to
  HitMap.parseJson. This parameter was deprecated and replaced with
  packagePath in https://github.com/dart-lang/coverage/pull/370 which
  was part of the overall deprecation of the .packages file in Dart
  itself https://github.com/dart-lang/sdk/issues/48272. The overall goal
  being that end-user code shouldn't need to know about implementation
  details such as whether dependency information is stored in a
  .packages file or a package_info.json file, but rather use the
  package_config package to obtain the package metadata and perform
  other functions such as resolving its dependencies to filesystem
  paths. packagesPath was replaced by packagePath, which takes the path
  to the package directory itself. Internally, package:coverage then
  uses package_config to do the rest of the package/script URI
  resolution to filesystem paths.
  This change was partially reverted and the deprecation ignored in this
  patch until package:coverage can be rolled internally at Google.

This is a pre-update prior to updating flutter_template_images in
https://github.com/flutter/flutter/pull/103739

Issue: https://github.com/flutter/flutter/issues/103371
Issue: https://github.com/flutter/flutter/issues/103775
Issue: https://github.com/flutter/flutter/issues/103830

When re-applying the partially-reverted changes to code coverage,
we'll need to patch host_entrypoint.dart internally to await the Future
that we'll be returning rather than a non-async value.