perf: disable nonminimal_bool by default

After performance concers on the `nonminimal_bool` lint, we performed a
crater run (rust-lang/rust issue number 153883).

This crater run revealed that in 19120 suggestions taken from 1.3
million crates, only about 36% had resulted in multi-terminal
suggestions (suggestions that were not only a single boolean).

This suggests that most cases of this lint firing, the expression that
triggered was pretty simple. And thus, we should not take such a huge
toll for a lint that isn't that useful.

changelog:[`nonminimal_bool`]: Move to `pedantic`.
changelog:[`overly_complex_bool_expr`]: Move to `pedantic`.

clippy_lints/src/booleans.rs

@@ -30,6 +30,8 @@
     /// Ignores short circuiting behavior of `||` and
     /// `&&`. Ignores `|`, `&` and `^`.
     ///
+    /// Creates a big toll on performance, **only enable sporadically**
+    ///
     /// ### Example
     /// ```ignore
     /// if a && true {}
@@ -43,7 +45,7 @@
     /// ```
     #[clippy::version = "pre 1.29.0"]
     pub NONMINIMAL_BOOL,
-    complexity,
+    pedantic,
     "boolean expressions that can be written more concisely"
 }
 
@@ -57,6 +59,7 @@
     ///
     /// ### Known problems
     /// Ignores short circuiting behavior.
+    /// Creates a big toll on performance, **only enable sporadically**
     ///
     /// ### Example
     /// ```rust,ignore
@@ -70,7 +73,7 @@
     /// ```
     #[clippy::version = "pre 1.29.0"]
     pub OVERLY_COMPLEX_BOOL_EXPR,
-    correctness,
+    pedantic,
     "boolean expressions that contain terminals which can be eliminated"
 }