Merge pull request SixLabors#2505 from sonbua/backport/2243

V2 backport: 2243 - Ignore unknown chunks for WEBP

Merge pull request SixLabors#3007 from SixLabors/js/backport-2679

Backport v3 : Tiff decoder: Fix issue 2679

Merge pull request SixLabors#2985 from mus65/backport_2926_2.1

Backport SixLabors#2926 to release/2.1.x

Merge pull request SixLabors#2971 from SixLabors/js/backport-v2-fix-2953

Backport V2 - GIF: Check for end of stream when reading comments.

Merge pull request SixLabors#2955 from SixLabors/js/v3-issue-2953

Backport V3 - GIF: Check for end of stream when reading comments.

Merge pull request SixLabors#2947 from SixLabors/js/v3-backport-2940

V3 Backport : Reduce the number of memory allocations in lossless WebP encoder

Merge pull request SixLabors#2931 from SixLabors/js/v3-issue-2920

V3: Do not encode WEBP images exceeding max dimensions

Merge pull request SixLabors#2915 from SixLabors/js/v3-fix-2909

V3 - Use BPP from Color Writer for Compressor

Set lang version

Merge pull request SixLabors#2896 from SixLabors/af/fix-3.1-build

[3.1] Set LangVersion=12 unconditionally