Bump pub to 31fa75baa5872e7f094a554c0ec7741742889530
Changes:
```
> git log --format="%C(auto) %h %s" 570696d..31fa75b
https://dart.googlesource.com/pub.git/+/31fa75ba Handle workspace interdependencies in `downgrade --tighten` (4346)
https://dart.googlesource.com/pub.git/+/fa941d58 Dependency services Fix applying when only a single pubspec has dependency (4338)
https://dart.googlesource.com/pub.git/+/9de221dd Handle failure to retrieve status when testing advisory cache age (4337)
https://dart.googlesource.com/pub.git/+/8ab5be0a Abide by lint `avoid_dynamic_calls` (4341)
https://dart.googlesource.com/pub.git/+/94583093 Abide by lint unintended_html_in_doc_comment (4347)
https://dart.googlesource.com/pub.git/+/59dd7cfe Ignore todos (4339)
https://dart.googlesource.com/pub.git/+/f03183b8 Bump the github-actions group with 2 updates (4322)
https://dart.googlesource.com/pub.git/+/19570012 Apply `package:dart_flutter_team_lints` (4324)
https://dart.googlesource.com/pub.git/+/45e77e95 Remove some unnecessary analysis options (4331)
```
Diff: https://dart.googlesource.com/pub.git/+/570696dd6f7b1e0fb7516eacd197d31542d7168e..31fa75baa5872e7f094a554c0ec7741742889530/
Change-Id: I69a3cff8c70e6bf97a3d16590b0eaf656cc24b51
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/381260
Commit-Queue: Sigurd Meldgaard <sigurdm@google.com>
Reviewed-by: Jonas Jensen <jonasfj@google.com>
diff --git a/DEPS b/DEPS
index 88af7ed..01d7a5c 100644
--- a/DEPS
+++ b/DEPS
@@ -169,7 +169,7 @@
"path_rev": "e969f42ed112dd702a9453beb9df6c12ae2d3805",
"pool_rev": "924fb04353cec915d927f9f1aed88e2eda92b98a",
"protobuf_rev": "ccf104dbc36929c0f8708285d5f3a8fae206343e",
- "pub_rev": "570696dd6f7b1e0fb7516eacd197d31542d7168e", # disable tools/rev_sdk_deps.dart
+ "pub_rev": "31fa75baa5872e7f094a554c0ec7741742889530", # disable tools/rev_sdk_deps.dart
"pub_semver_rev": "d9e5ee68a350fbf4319bd4dfcb895fc016337d3a",
"shelf_rev": "9f2dffecbe8f219146a077e401758602752d486a",
"source_map_stack_trace_rev": "741b6ceb4b6cdb8ff620664337d7ecc63ca52cc1",
