chore: unify cargo versions (#4044)

Unify cargo versions at root

codex-rs/Cargo.lock

@@ -687,7 +687,7 @@ dependencies = [
  "portable-pty",
  "predicates",
  "pretty_assertions",
- "rand 0.9.2",
+ "rand",
  "regex-lite",
  "reqwest",
  "seccompiler",
@@ -798,7 +798,7 @@ dependencies = [
  "codex-core",
  "codex-protocol",
  "core_test_support",
- "rand 0.8.5",
+ "rand",
  "reqwest",
  "serde",
  "serde_json",
@@ -936,7 +936,7 @@ dependencies = [
  "pathdiff",
  "pretty_assertions",
  "pulldown-cmark",
- "rand 0.9.2",
+ "rand",
  "ratatui",
  "regex-lite",
  "serde",
@@ -3454,35 +3454,14 @@ dependencies = [
  "nibble_vec",
 ]
 
-[[package]]
-name = "rand"
-version = "0.8.5"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "34af8d1a0e25924bc5b7c43c079c942339d8f0a8b57c39049bef581b46327404"
-dependencies = [
- "libc",
- "rand_chacha 0.3.1",
- "rand_core 0.6.4",
-]
-
 [[package]]
 name = "rand"
 version = "0.9.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6db2770f06117d490610c7488547d543617b21bfa07796d7a12f6f1bd53850d1"
 dependencies = [
- "rand_chacha 0.9.0",
- "rand_core 0.9.3",
-]
-
-[[package]]
-name = "rand_chacha"
-version = "0.3.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e6c10a63a0fa32252be49d21e7709d4d4baf8d231c2dbce1eaa8141b9b127d88"
-dependencies = [
- "ppv-lite86",
- "rand_core 0.6.4",
+ "rand_chacha",
+ "rand_core",
 ]
 
 [[package]]
@@ -3492,16 +3471,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d3022b5f1df60f26e1ffddd6c66e8aa15de382ae63b3a0c1bfc0e4d3e3f325cb"
 dependencies = [
  "ppv-lite86",
- "rand_core 0.9.3",
-]
-
-[[package]]
-name = "rand_core"
-version = "0.6.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
-dependencies = [
- "getrandom 0.2.16",
+ "rand_core",
 ]
 
 [[package]]