build(deps): update rand requirement in the cargo-crates group

Updates the requirements on [rand](https://github.com/rust-random/rand) to permit the latest version.

Updates `rand` to 0.9.0
- [Release notes](https://github.com/rust-random/rand/releases)
- [Changelog](https://github.com/rust-random/rand/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rust-random/rand/compare/0.8.5...0.9.0)

---
updated-dependencies:
- dependency-name: rand
  dependency-type: direct:production
  dependency-group: cargo-crates
...

Signed-off-by: dependabot[bot] <support@github.com>

Cargo.toml

@@ -87,7 +87,7 @@ proc-macro2 = { version = "1", default-features = false }
 proc-macro2-diagnostics = { version = "0.10.1", default-features = false }
 public-api = { version = "0.43.0", default-features = false }
 quote = { version = "1", default-features = false }
-rand = { version = "0.8", default-features = false }
+rand = { version = "0.9", default-features = false }
 rbpf = { version = "0.3.0", default-features = false }
 rustdoc-json = { version = "0.9.0", default-features = false }
 rustup-toolchain = { version = "0.1.5", default-features = false }

test/integration-test/Cargo.toml

@@ -22,7 +22,7 @@ libc = { workspace = true }
 log = { workspace = true }
 netns-rs = { workspace = true }
 object = { workspace = true, features = ["elf", "read_core", "std"] }
-rand = { workspace = true, features = ["std", "std_rng"] }
+rand = { workspace = true, features = ["thread_rng"] }
 rbpf = { workspace = true }
 test-case = { workspace = true }
 test-log = { workspace = true, features = ["log"] }

test/integration-test/src/tests/ring_buf.rs

@@ -77,8 +77,8 @@ struct WithData(RingBufTest, Vec<u64>);
 impl WithData {
     fn new(n: usize) -> Self {
         Self(RingBufTest::new(), {
-            let mut rng = rand::thread_rng();
+            let mut rng = rand::rng();
-            std::iter::repeat_with(|| rng.gen()).take(n).collect()
+            std::iter::repeat_with(|| rng.random()).take(n).collect()
         })
     }
 }
@@ -270,13 +270,17 @@ async fn ring_buf_async_no_drop() {
     ) = WithData::new(RING_BUF_MAX_ENTRIES * 3);
 
     let writer = {
-        let data = data.to_owned();
+        let mut rng = rand::rng();
+        let data: Vec<_> = data
+            .iter()
+            .copied()
+            .map(|value| (value, Duration::from_nanos(rng.random_range(0..10))))
+            .collect();
         tokio::spawn(async move {
-            for value in data {
+            for (value, duration) in data {
                 // Sleep a tad so we feel confident that the consumer will keep up
                 // and no messages will be dropped.
-                let dur = Duration::from_nanos(rand::thread_rng().gen_range(0..10));
+                sleep(duration).await;
-                sleep(dur).await;
                 ring_buf_trigger_ebpf_program(value);
             }
         })