Bump pub

included commits:

 392a3cb4 Inline all usage of package:package_config (#2821)
 fdf7b052 Handle empty version constraint (#2796)
 d786b479 Inline package:http_throttle (#2812)
 789be3d4 Don't re-precompile if current global installed was same version (#2810)
 9851bf64 Simplify reproduction command (#2797)
 8eba9cfb Remove unused function (#2808)
 a377b5a6 Pass a Uri to package:http APIs (#2794)
 12d49078 Fix git not installed test on windows (#2803)
 d74520ac Deprecate flutter constraint upper bound (#2780)

Change-Id: Iecff8cc12fe55f12018b4e1f2257886317d2b5cb
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/177603
Reviewed-by: Jonas Jensen <jonasfj@google.com>
Commit-Queue: Sigurd Meldgaard <sigurdm@google.com>

CHANGELOG.md

@@ -158,7 +158,14 @@ Updated the Linter to `0.1.127`, which includes:
 * The `--server` option to `dart pub publish` and `dart pub uploader` have been
   deprecated. Use `publish_to` in your `pubspec.yaml` or set the
   `$PUB_HOSTED_URL` environment variable.
+* `pub global activate no longer re-precompiles if current global installed was
+   same version.
+* The Flutter SDK constraint upper bound is now ignored in pubspecs and
+  deprecated when publishing.
 
+  See: [flutter-upper-bound-deprecation][].
+
+[flutter-upper-bound-deprecation]: https://dart.dev/go/flutter-upper-bound-deprecation
 [#44072]: https://github.com/dart-lang/sdk/issues/44072
 [dart tool]: https://dart.dev/tools/dart-tool
 

DEPS

@@ -133,7 +133,7 @@ vars = {
   "ply_rev": "604b32590ffad5cbb82e4afef1d305512d06ae93",
   "pool_rev": "7abe634002a1ba8a0928eded086062f1307ccfae",
   "protobuf_rev": "0d03fd588df69e9863e2a2efc0059dee8f18d5b2",
-  "pub_rev": "8ea96121dbb3f762f63e641d49141927dc30aac1",
+  "pub_rev": "392a3cb455af48f7ce8807a96174691945f97f0a",
   "pub_semver_rev": "10569a1e867e909cf5db201f73118020453e5db8",
   "resource_rev": "6b79867d0becf5395e5819a75720963b8298e9a7",
   "root_certificates_rev": "7e5ec82c99677a2e5b95ce296c4d68b0d3378ed8",