Replace deprecated criterion::black_box with std::hint::black_box (#3860)

* replace deprecated criterion::black_box with std::hint::black_box

* gemini code review suggestions

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

* apply formating

---------

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

Author: Ayush2k02

libraries/math-parser/benches/bench.rs

@@ -1,6 +1,7 @@
-use criterion::{Criterion, black_box, criterion_group, criterion_main};
-use math_parser::ast;
-use math_parser::context::EvalContext;
+use std::hint::black_box;
+
+use criterion::{Criterion, criterion_group, criterion_main};
+use math_parser::{ast, context::EvalContext};
 
 macro_rules! generate_benchmarks {
 	($( $input:expr_2021 ),* $(,)?) => {

libraries/path-bool/benches/painted_dreams.rs

@@ -1,4 +1,6 @@
-use criterion::{Criterion, black_box, criterion_group, criterion_main};
+use std::hint::black_box;
+
+use criterion::{Criterion, criterion_group, criterion_main};
 use path_bool::*;
 
 pub fn criterion_benchmark(c: &mut Criterion) {

libraries/path-bool/benches/path_segment_intersection.rs

@@ -1,4 +1,6 @@
-use criterion::{Criterion, black_box, criterion_group, criterion_main};
+use std::hint::black_box;
+
+use criterion::{Criterion, criterion_group, criterion_main};
 use glam::DVec2;
 use path_bool::*;
 

node-graph/graph-craft/benches/compile_demo_art_criterion.rs

@@ -1,5 +1,8 @@
-use criterion::{Criterion, black_box, criterion_group, criterion_main};
+use std::hint::black_box;
+
+use criterion::{Criterion, criterion_group, criterion_main};
 use graph_craft::util::DEMO_ART;
+
 fn compile_to_proto(c: &mut Criterion) {
 	use graph_craft::util::{compile, load_from_name};
 	let mut c = c.benchmark_group("Compile Network cold");