Rollup merge of #107817 - notriddle:notriddle/wheel-svg, r=GuillaumeGomez

rustdoc: use svgo to shrink `wheel.svg`

use [svgo] to shrink `wheel.svg`

[svgo]: https://github.com/svg/svgo

    $ du -bs src/librustdoc/html/static/images/wheel.svg wheel-old.svg
    2972    src/librustdoc/html/static/images/wheel.svg
    3764    wheel-old.svg

100*((2972-3764)/3764) = -21.04%

Author: compiler-errors