Update to 1.012003

Upstream changes:
1.012003        2021-05-09

[ Documentation ]
- Fixed typo in Type::Tiny::Enum where the `closest_match` method was
  documented as being called `closet_match`.

[ Other ]
- Type::Parser now supports negative hexadecimal integers.

1.012002        2021-05-02

[ Bug Fixes ]
- Fix precendence error in generated code for Tuples.
  Philippe Bruhat++
  <https://github.com/tobyink/p5-type-tiny/pull/64>

[ Documentation ]
- Fixed typo in pod for Type::Tiny::Enum
  Windymelt++
  <https://github.com/tobyink/p5-type-tiny/pull/70>

[ Test Suite ]
- Fix testcase for Tuples with slurpy HashRef to pass a literal hashref
  (which should fail) instead of an arrayref (which should also fail, but
  less subtly).
  Philippe Bruhat++
  <https://github.com/tobyink/p5-type-tiny/pull/64>
- Type::Tiny is no longer routinely tested on Perl versions older than
  5.8.1.
  <https://github.com/tobyink/p5-type-tiny/actions>

[ Other ]
- Type::Parser now supports hexadecimal integers.
  <https://github.com/tobyink/p5-type-tiny/issues/71>

(wen)