Update Imagesharp

[JimBobSquarePants]

Prerequisites

• [x] I have written a descriptive pull-request title
• [x] I have verified that there are no overlapping pull-requests open
• [x] I have verified that I am following matches the existing coding patterns and practice as demonstrated in the repository. These follow strict Stylecop rules :cop:.
• [x] I have provided test coverage for my change (where applicable)

Description

Also fixes a couple of warnings and optimizes the preset query parser a little.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (2ac2e3c) 85% compared to head (17aae94) 85%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #345 +/- ## =================================== - Coverage 85% 85% -1% =================================== Files 82 82 Lines 2334 2332 -2 Branches 348 348 =================================== - Hits 1998 1996 -2 Misses 233 233 Partials 103 103 ``` | [Flag](https://app.codecov.io/gh/SixLabors/ImageSharp.Web/pull/345/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=SixLabors) | Coverage Δ | | |---|---|---| | [unittests](https://app.codecov.io/gh/SixLabors/ImageSharp.Web/pull/345/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=SixLabors) | `85% <100%> (-1%)` | :arrow_down: | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=SixLabors#carryforward-flags-in-the-pull-request-comment) to find out more.

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