Bump pub to 528f5103fb5e9a7d5f5bc4e365a3514927bd43db

Changes:
```
> git log --format="%C(auto) %h %s" 639536a..528f510
 https://dart.googlesource.com/pub.git/+/528f5103 Fix compilation of global path activated packages (4541)
 https://dart.googlesource.com/pub.git/+/b6651897 Bump dart_flutter_team_lints from 3.3.0 to 3.5.1 (4544)
 https://dart.googlesource.com/pub.git/+/9efc8bb2 Bump args from 2.6.0 to 2.7.0 (4543)
 https://dart.googlesource.com/pub.git/+/cd3d6532 Bump pub_semver from 2.1.5 to 2.2.0 (4539)
 https://dart.googlesource.com/pub.git/+/61329c2e Preserve path separator in `pub add` with absolute path (4535)
 https://dart.googlesource.com/pub.git/+/e44a3ebd Bump dart-lang/setup-dart in the github-actions group (4530)

```

Diff: https://dart.googlesource.com/pub.git/+/639536aa78f7382b4a948669bfdc283f830b2ae9..528f5103fb5e9a7d5f5bc4e365a3514927bd43db/
Change-Id: Icbfe299a0649655d1034462108ee6435b53a5f39
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/416960
Reviewed-by: Sarah Zakarias <[email protected]>
Commit-Queue: Sigurd Meldgaard <[email protected]>

Author: sigurdm

DEPS

@@ -139,7 +139,7 @@ vars = {
   "material_color_utilities_rev": "799b6ba2f3f1c28c67cc7e0b4f18e0c7d7f3c03e",
   "native_rev": "8663dfa953ac4eb8713f9f4057355e7718500442", # rolled manually while native assets are experimental
   "protobuf_rev": "0bab78d9538e49d50023bab36159b15ff3c369eb",
-  "pub_rev": "639536aa78f7382b4a948669bfdc283f830b2ae9", # rolled manually
+  "pub_rev": "528f5103fb5e9a7d5f5bc4e365a3514927bd43db", # rolled manually
   "shelf_rev": "2af8529640d10a247ebfa4e17e629a2ff5273656",
   "sync_http_rev": "dc54465f07d9652875deeade643256dafa2fbc6c",
   "tar_rev": "5a1ea943e70cdf3fa5e1102cdbb9418bd9b4b81a",