bump to linter 0.1.91

Change-Id: I107ffd93ac2e6f814dbb74f8de7dc445f824ec32
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/104844
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Phil Quitslund <pquitslund@google.com>
diff --git a/CHANGELOG.md b/CHANGELOG.md
index fdf75f1..54b7a88 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -54,10 +54,12 @@
 
 #### Linter
 
-The Linter was updated to `0.1.90`, which includes the following changes:
+The Linter was updated to `0.1.91`, which includes the following changes:
 
-* fixed null-reference in `unrelated_type_equality_checks`
-* new lint: `unsafe_html`
+* fixed missed cases in `prefer_const_constructors`
+* fixed `prefer_initializing_formals` to no longer suggest API breaking changes
+* updated `omit_local_variable_types` to allow explicit `dynamic`s
+* (internal) migration from deprecated analyzer APIs
 
 #### Pub
 
diff --git a/DEPS b/DEPS
index cca16d0..5a16132 100644
--- a/DEPS
+++ b/DEPS
@@ -96,7 +96,7 @@
   "intl_tag": "0.15.7",
   "jinja2_rev": "2222b31554f03e62600cd7e383376a7c187967a1",
   "json_rpc_2_tag": "2.0.9",
-  "linter_tag": "0.1.90",
+  "linter_tag": "0.1.91",
   "logging_tag": "0.11.3+2",
   "markupsafe_rev": "8f45f5cfa0009d2a70589bcda0349b8cb2b72783",
   "markdown_tag": "2.0.3",