Update some dependency versions (#358)

Author: alexcrichton

Cargo.toml

@@ -30,15 +30,15 @@ serde = { version = "1.0", optional = true, features = ['derive'] }
 rustc-serialize = { version = "0.3", optional = true }
 
 # Optionally demangle C++ frames' symbols in backtraces.
-cpp_demangle = { default-features = false, version = "0.2.3", optional = true }
+cpp_demangle = { default-features = false, version = "0.3.0", optional = true }
 
 # Internal dependencies when built as a dependency of libstd, do not use.
 core = { version = "1.0.0", optional = true, package = 'rustc-std-workspace-core' }
 compiler_builtins = { version = '0.1.2', optional = true }
 
 # Optional dependencies enabled through the `gimli-symbolize` feature, do not
 # use these features directly.
-addr2line = { version = "0.12.0", optional = true, default-features = false }
+addr2line = { version = "0.13.0", optional = true, default-features = false }
 miniz_oxide = { version = "0.4.0", optional = true, default-features = false }
 [dependencies.object]
 version = "0.20.0"