Bump typed-ast from 1.3.1 to 1.3.2

Bumps [typed-ast](https://github.com/python/typed_ast) from 1.3.1 to 1.3.2.
- [Release notes](https://github.com/python/typed_ast/releases)
- [Changelog](https://github.com/python/typed_ast/blob/master/release_process.md)
- [Commits](python/typed_ast@1.3.1...1.3.2)

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

requirements-dev.txt

@@ -42,7 +42,7 @@ setuptools==40.8.0
 six==1.12.0
 termcolor==1.1.0
 toml==0.10.0
-typed-ast==1.3.1
+typed-ast==1.3.2
 urwid==2.0.1
 virtualenv==16.4.3
 watchdog==0.9.0