Update ui test suite to nightly-2026-01-21
diff --git a/tests/ui/ensure-nonbool.stderr b/tests/ui/ensure-nonbool.stderr
index 5cc4f13..5a4e0ec 100644
--- a/tests/ui/ensure-nonbool.stderr
+++ b/tests/ui/ensure-nonbool.stderr
@@ -1,13 +1,13 @@
-error[E0277]: the trait bound `&str: __private::not::Bool` is not satisfied
+error[E0277]: the trait bound `&str: anyhow::__private::not::Bool` is not satisfied
   --> tests/ui/ensure-nonbool.rs:25:13
    |
 25 |     ensure!("...");
    |     --------^^^^^-
    |     |       |
-   |     |       the trait `__private::not::Bool` is not implemented for `&str`
+   |     |       the trait `anyhow::__private::not::Bool` is not implemented for `&str`
    |     required by a bound introduced by this call
    |
-help: the following other types implement trait `__private::not::Bool`
+help: the following other types implement trait `anyhow::__private::not::Bool`
   --> src/lib.rs
    |
    |         impl Bool for bool {
@@ -21,16 +21,16 @@
    |     pub fn not(cond: impl Bool) -> bool {
    |                           ^^^^ required by this bound in `not`
 
-error[E0277]: the trait bound `&mut bool: __private::not::Bool` is not satisfied
+error[E0277]: the trait bound `&mut bool: anyhow::__private::not::Bool` is not satisfied
   --> tests/ui/ensure-nonbool.rs:29:31
    |
 29 |         Bool(cond) => ensure!(cond),
    |                       --------^^^^-
    |                       |       |
-   |                       |       the trait `__private::not::Bool` is not implemented for `&mut bool`
+   |                       |       the trait `anyhow::__private::not::Bool` is not implemented for `&mut bool`
    |                       required by a bound introduced by this call
    |
-   = note: `__private::not::Bool` is implemented for `&bool`, but not for `&mut bool`
+   = note: `anyhow::__private::not::Bool` is implemented for `&bool`, but not for `&mut bool`
 note: required by a bound in `anyhow::__private::not`
   --> src/lib.rs
    |
@@ -41,7 +41,7 @@
 29 |         Bool(cond) => ensure!(*cond),
    |                               +
 
-error[E0277]: the trait bound `DerefBool: __private::not::Bool` is not satisfied
+error[E0277]: the trait bound `DerefBool: anyhow::__private::not::Bool` is not satisfied
   --> tests/ui/ensure-nonbool.rs:33:13
    |
 33 |     ensure!(db);
@@ -50,7 +50,7 @@
    |     |       unsatisfied trait bound
    |     required by a bound introduced by this call
    |
-help: the trait `__private::not::Bool` is not implemented for `DerefBool`
+help: the trait `anyhow::__private::not::Bool` is not implemented for `DerefBool`
   --> tests/ui/ensure-nonbool.rs:6:1
    |
  6 | struct DerefBool(bool);
@@ -65,13 +65,13 @@
 33 |     ensure!(*db);
    |             +
 
-error[E0277]: the trait bound `&DerefBool: __private::not::Bool` is not satisfied
+error[E0277]: the trait bound `&DerefBool: anyhow::__private::not::Bool` is not satisfied
   --> tests/ui/ensure-nonbool.rs:34:13
    |
 34 |     ensure!(&db);
    |     --------^^^-
    |     |       |
-   |     |       the trait `__private::not::Bool` is not implemented for `&DerefBool`
+   |     |       the trait `anyhow::__private::not::Bool` is not implemented for `&DerefBool`
    |     required by a bound introduced by this call
    |
 note: required by a bound in `anyhow::__private::not`
@@ -84,7 +84,7 @@
 34 |     ensure!(&*db);
    |              +
 
-error[E0277]: the trait bound `NotBool: __private::not::Bool` is not satisfied
+error[E0277]: the trait bound `NotBool: anyhow::__private::not::Bool` is not satisfied
   --> tests/ui/ensure-nonbool.rs:37:13
    |
 37 |     ensure!(nb);
@@ -93,12 +93,12 @@
    |     |       unsatisfied trait bound
    |     required by a bound introduced by this call
    |
-help: the trait `__private::not::Bool` is not implemented for `NotBool`
+help: the trait `anyhow::__private::not::Bool` is not implemented for `NotBool`
   --> tests/ui/ensure-nonbool.rs:8:1
    |
  8 | struct NotBool(bool);
    | ^^^^^^^^^^^^^^
-help: the following other types implement trait `__private::not::Bool`
+help: the following other types implement trait `anyhow::__private::not::Bool`
   --> src/lib.rs
    |
    |         impl Bool for bool {