Bump pub to 9ab905a24e36ef339c99f73bfb6683874feed8ce

Changes:
```
> git log --format="%C(auto) %h %s" df3664d..9ab905a
 https://dart.googlesource.com/pub.git/+/9ab905a2 Fix handling of directories in archives  (4306)

```

Diff: https://dart.googlesource.com/pub.git/+/df3664d17fd146ccd19b32820a022404da91f6d3..9ab905a24e36ef339c99f73bfb6683874feed8ce/
Change-Id: Ib95f00a8bf1306d5f43f37c80e2d5d92f7a427ea
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/371125
Reviewed-by: Jake Macdonald <jakemac@google.com>
Commit-Queue: Sigurd Meldgaard <sigurdm@google.com>
Commit-Queue: Jake Macdonald <jakemac@google.com>
Auto-Submit: Sigurd Meldgaard <sigurdm@google.com>
diff --git a/DEPS b/DEPS
index d19f707..a17f075 100644
--- a/DEPS
+++ b/DEPS
@@ -169,7 +169,7 @@
   "path_rev": "8fc4c72415f254b953b17929b56283cceb3dc5c4",
   "pool_rev": "88e463600c636a0d8cdb5dc306524ebf04b06baf",
   "protobuf_rev": "ccf104dbc36929c0f8708285d5f3a8fae206343e",
-  "pub_rev": "df3664d17fd146ccd19b32820a022404da91f6d3", # disable tools/rev_sdk_deps.dart
+  "pub_rev": "9ab905a24e36ef339c99f73bfb6683874feed8ce", # disable tools/rev_sdk_deps.dart
   "pub_semver_rev": "a9025f3cc23ebb0f86c0af8759d95306b9133ce0",
   "shelf_rev": "ea3c983a1e721acf5e7e42a4d3ade65b9ccf51a9",
   "source_map_stack_trace_rev": "96a8213dacf7cd42aefb1311491a4169826f98d2",