Enable tests for QNX/Neutrino, integrate new libc version

.github/workflows/tests.yml

@@ -294,6 +294,7 @@ jobs:
           aarch64-kmc-solid_asp3,
           armv6k-nintendo-3ds,
           riscv32imc-esp-espidf,
+          aarch64-unknown-nto-qnx710,
           # `std` support still in progress. Can be moved up with the other
           # apple targets after https://github.com/rust-lang/rust/pull/103503
           aarch64-apple-tvos,

Cargo.toml

@@ -18,7 +18,7 @@ compiler_builtins = { version = "0.1", optional = true }
 core = { version = "1.0", optional = true, package = "rustc-std-workspace-core" }
 
 [target.'cfg(unix)'.dependencies]
-libc = { version = "0.2.136", default-features = false }
+libc = { version = "0.2.139", default-features = false }
 
 [target.'cfg(target_os = "wasi")'.dependencies]
 wasi = { version = "0.11", default-features = false }