Bump SixLabors.ImageSharp from 3.1.10 to 3.1.12

---
updated-dependencies:
- dependency-name: SixLabors.ImageSharp
  dependency-version: 3.1.12
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

GithubActionsHelloWorld/GithubActionsHelloWorld.csproj

@@ -20,7 +20,7 @@
 	</PropertyGroup>
 
 	<ItemGroup>
-		<PackageReference Include="SixLabors.ImageSharp" Version="3.1.10" />
+		<PackageReference Include="SixLabors.ImageSharp" Version="3.1.12" />
 		<PackageReference Include="ZXing.Net" Version="0.16.10" />
 	</ItemGroup>