Log Message:
textproc/git-delta: update to 0.18.0

As usual, tons of excellent contributions, all but one not by me! @th1000s has \ 
made a huge number of important and difficult improvements to delta and helped \ 
with many issues over the few years since the project started, and so I'm happy \ 
to say that he's co-maintaining the project with me nowadays. Thanks to all \ 
contributors for the improvements below!

What's Changed

    Link to Repository from Manual by @bash in #1657
    Stop highlighting unchanged whitespace by @phillipwood in #1659
    Add .gitattributes rules for rust files by @phillipwood in #1245
    Repair --default-language, and highlight using full filename by @th1000s in #1549
    tests: prevent parallel env var access by @th1000s in #1681
    CI: fix macOS build by @th1000s in #1696
    Only use nosort in bash <4.4 by @martinml in #1683
    Don't read git files when --no-gitconfig is given + unused variables by \ 
@th1000s in #1728
    tests: add insta for snapshot testing by @th1000s in #1739
    tests: set terminal width to 43 by @th1000s in #1741
    Fix panic when blame-palette is empty by @thorio in #1737
    Make relative-paths work with binary files by @th1000s in #1740
    Fix github links from master to main by @madeddie in #1709
    Update terminal-colorsaurus by @bash in #1699
    Make less version >= 633 behave like previous versions wrt. Nerd Fonts by \ 
@th1000s in #1762
    Update catppuccin-latte casing in LIGHT_SYNTAX_THEMES list by @injust in #1745
    deps: bump libc from 0.2.153 to 0.2.155 by @wxpppp in #1715
    Add missing --file-*-label option to --navigate docs by @injust in #1744
    Fix copy-paste typo by @injust in #1767
    Update syntect to 5.2.0 by @timhillgit in #1672
    Disable light mode detection in tests by @bash in #1765
    Add --max-syntax-highlighting-length, set to 400 by @th1000s in #1746
    chore: cleanup brew formula file in favor of core tap by @chenrui333 in #1773
    wrap --help output, fix rust 1.80 build by @th1000s in #1440
    Fix delta-toggle shell script by @dandavison in #1794
    Do not wrap short help (-h) output by @th1000s in #1800
    Implement --diff-args by @dandavison in #1697
    Handle ambiguous diff header, '--- ' can also be present in a minus hunk by \ 
@th1000s in #1787
    cd: build binaries targeting GNU libc on ubuntu-20.04, not latest by \ 
@th1000s in #1805