Bump System.IO.Abstractions from 21.0.2 to 21.0.22

Bumps [System.IO.Abstractions](https://github.com/TestableIO/System.IO.Abstractions) from 21.0.2 to 21.0.22.
- [Release notes](https://github.com/TestableIO/System.IO.Abstractions/releases)
- [Commits](TestableIO/System.IO.Abstractions@v21.0.2...v21.0.22)

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

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

src/Bicep.Core/Bicep.Core.csproj

@@ -44,7 +44,7 @@
     <PackageReference Include="Azure.Bicep.Types" Version="0.5.9" />
     <PackageReference Include="Azure.Bicep.Types.Az" Version="0.2.698" />
     <PackageReference Include="Azure.Bicep.Types.K8s" Version="0.1.626" />
-    <PackageReference Include="System.IO.Abstractions" Version="21.0.2" />
+    <PackageReference Include="System.IO.Abstractions" Version="21.0.22" />
     <PackageReference Include="Azure.Bicep.Internal.RoslynAnalyzers" Version="0.1.38" PrivateAssets="all" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.0" />
     <!-- force an upgrade of this dependency as it seems to cause build flakiness for unknown reasons -->

src/Bicep.RegistryModuleTool/Bicep.RegistryModuleTool.csproj

@@ -31,7 +31,7 @@
     <PackageReference Include="System.CommandLine.Hosting" Version="0.4.0-alpha.22272.1" />
     <PackageReference Include="System.CommandLine.NamingConventionBinder" Version="2.0.0-beta4.22272.1" />
     <PackageReference Include="System.CommandLine.Rendering" Version="0.4.0-alpha.22272.1" />
-    <PackageReference Include="System.IO.Abstractions" Version="21.0.2" />
+    <PackageReference Include="System.IO.Abstractions" Version="21.0.22" />
   </ItemGroup>
 
   <ItemGroup>