Update pub dependency

Closes #32622

Change-Id: I5677acf9f069d4786544dfa6b3cd2a05af77e7b2
Reviewed-on: https://dart-review.googlesource.com/47682
Reviewed-by: Natalie Weizenbaum <[email protected]>
Reviewed-by: William Hesse <[email protected]>
Commit-Queue: Kevin Moore <[email protected]>

Author: kevmoo

CHANGELOG.md

@@ -8,6 +8,17 @@
 
 ### Tool Changes
 
+#### Pub
+
+* Pub will now automatically retry HTTP requests that fail with an IO error
+  ([issue 1826][pub#1826]).
+
+* `pub deps` now includes the SDK version. This makes the output more helpful
+  when included in bug reports ([issue 1827][pub#1827]).
+
+* `build` and `serve` now print a deprecation warning pointing users to
+  https://webdev.dartlang.org/dart-2 ([issue 1823][pub#1823]).
+
 ## 2.0.0-dev.40.0
 
 ### Core library changes

DEPS

@@ -116,7 +116,7 @@ vars = {
   "ply_rev": "@604b32590ffad5cbb82e4afef1d305512d06ae93",
   "pool_tag": "@1.3.4",
   "protobuf_tag": "@0.7.1",
-  "pub_rev": "@dbe8be2bb8bca9b26ba7bd583272c62f9a0153fd",
+  "pub_rev": "@875d35005a7d33f367d70a3e31e9d3bad5d1ebd8",
   "pub_semver_tag": "@1.3.2",
   "quiver_tag": "@5aaa3f58c48608af5b027444d561270b53f15dbf",
   "resource_rev":"@af5a5bf65511943398146cf146e466e5f0b95cb9",