Bump System.IO.Abstractions from 21.1.7 to 21.2.8

Bumps [System.IO.Abstractions](https://github.com/TestableIO/System.IO.Abstractions) from 21.1.7 to 21.2.8.
- [Release notes](https://github.com/TestableIO/System.IO.Abstractions/releases)
- [Commits](TestableIO/System.IO.Abstractions@v21.1.7...v21.2.8)

---
updated-dependencies:
- dependency-name: System.IO.Abstractions
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

src/EawModinfo.Tests/EawModinfo.Tests.csproj

@@ -17,7 +17,7 @@
 		  <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
 		</PackageReference>
 		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
-		<PackageReference Include="System.IO.Abstractions" Version="21.1.7" />
+		<PackageReference Include="System.IO.Abstractions" Version="21.2.8" />
 		<PackageReference Include="System.IO.Abstractions.TestingHelpers" Version="21.1.7" />
 		<PackageReference Include="xunit" Version="2.9.2" />
 		<PackageReference Include="xunit.runner.visualstudio" Version="2.8.2">

src/EawModinfo/EawModinfo.csproj

@@ -49,7 +49,7 @@
 		  <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
 		</PackageReference>
 		<PackageReference Include="Semver" Version="3.0.0" />
-		<PackageReference Include="System.IO.Abstractions" Version="21.1.7" />
+		<PackageReference Include="System.IO.Abstractions" Version="21.2.8" />
 		<PackageReference Include="System.Text.Json" Version="9.0.0" />
 	</ItemGroup>