Update dependencies to latest versions (rust-lang#463)

Saw there were updates and figured it'd be good to pull these in.

Author: alexcrichton

Cargo.toml

@@ -41,9 +41,9 @@ cpp_demangle = { default-features = false, version = "0.3.0", optional = true }
 # Optional dependencies enabled through the `gimli-symbolize` feature, do not
 # use these features directly.
 addr2line = { version = "0.17.0", default-features = false }
-miniz_oxide = { version = "0.4.0", default-features = false }
+miniz_oxide = { version = "0.5.0", default-features = false }
 [dependencies.object]
-version = "0.27.0"
+version = "0.28.0"
 default-features = false
 features = ['read_core', 'elf', 'macho', 'pe', 'unaligned', 'archive']