Bump System.IO.Abstractions from 21.0.29 to 21.1.3 in /src (#2617)

Bumps [System.IO.Abstractions](https://github.com/TestableIO/System.IO.Abstractions) from 21.0.29 to 21.1.3.
- [Release notes](https://github.com/TestableIO/System.IO.Abstractions/releases)
- [Commits](TestableIO/System.IO.Abstractions@v21.0.29...v21.1.3)

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

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

src/Core/efcpt.6/efcpt.6.csproj

@@ -56,7 +56,7 @@
     <PackageReference Include="Microsoft.Extensions.Hosting" Version="8.0.1" />
     <PackageReference Include="NuGet.Protocol" Version="6.11.1" />
     <PackageReference Include="Spectre.Console" Version="0.49.1" />
-    <PackageReference Include="System.IO.Abstractions" Version="21.0.29" />
+    <PackageReference Include="System.IO.Abstractions" Version="21.1.3" />
   </ItemGroup>
 
   <ItemGroup>

src/Core/efcpt.8/efcpt.8.csproj

@@ -49,7 +49,7 @@
     <PackageReference Include="Microsoft.Extensions.Hosting" Version="8.0.1" />
     <PackageReference Include="NuGet.Protocol" Version="6.11.1" />
     <PackageReference Include="Spectre.Console" Version="0.49.1" />
-    <PackageReference Include="System.IO.Abstractions" Version="21.0.29" />
+    <PackageReference Include="System.IO.Abstractions" Version="21.1.3" />
   </ItemGroup>
 
   <ItemGroup>

src/Core/efcpt.9/efcpt.9.csproj

@@ -59,7 +59,7 @@
     <PackageReference Include="Microsoft.Extensions.Hosting" Version="8.0.1" />
     <PackageReference Include="NuGet.Protocol" Version="6.11.1" />
     <PackageReference Include="Spectre.Console" Version="0.49.1" />
-    <PackageReference Include="System.IO.Abstractions" Version="21.0.29" />
+    <PackageReference Include="System.IO.Abstractions" Version="21.1.3" />
   </ItemGroup>
 
   <ItemGroup>