Update to 1.273
Update DEPENDS

UPstream changes:
1.273  2022-04-22 15:58:31Z
        Summary:
    - Whitespace in signatures is now preserved (GH#257)

1.272  2022-02-02 16:10:50Z
        Summary:
        - Drop prerequisite for IO::String on perl 5.8+

1.271  2022-01-25 21:47:21Z
        Summary:
        - return correct name for lexical subroutines
        - silence uninitialized warning in t/07_token.t
        - bump minimum Test::More version to 0.96
        - fix some typos in Pod
        - moved repository to Perl-Critic GitHub org:
                https://github.com/Perl-Critic/PPI

(wen)