Bump System.IO.Abstractions.TestingHelpers from 19.1.18 to 20.0.4

Bumps [System.IO.Abstractions.TestingHelpers](https://github.com/TestableIO/System.IO.Abstractions) from 19.1.18 to 20.0.4.
- [Release notes](https://github.com/TestableIO/System.IO.Abstractions/releases)
- [Commits](TestableIO/System.IO.Abstractions@v19.1.18...v20.0.4)

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

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

src/BicepButton/BicepButton.csproj

@@ -1,28 +1,28 @@
-<Project Sdk="Microsoft.NET.Sdk">
-  <PropertyGroup>
-    <TargetFramework>net7.0</TargetFramework>
-    <AzureFunctionsVersion>v4</AzureFunctionsVersion>
-    <OutputType>Exe</OutputType>
-    <ImplicitUsings>enable</ImplicitUsings>
-    <Nullable>enable</Nullable>
-  </PropertyGroup>
-  <ItemGroup>
-    <PackageReference Include="Microsoft.Azure.Functions.Worker" Version="1.10.0" />
-    <PackageReference Include="Microsoft.Azure.Functions.Worker.Extensions.Http" Version="3.0.13" />
-    <PackageReference Include="Microsoft.Azure.Functions.Worker.Sdk" Version="1.7.0" />
-    <PackageReference Include="Azure.Bicep.Core" Version="0.24.24" />
-    <PackageReference Include="System.IO.Abstractions.TestingHelpers" Version="19.1.18" />
-  </ItemGroup>
-  <ItemGroup>
-    <None Update="host.json">
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-    </None>
-    <None Update="local.settings.json">
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-      <CopyToPublishDirectory>Never</CopyToPublishDirectory>
-    </None>
-  </ItemGroup>
-  <ItemGroup>
-    <Using Include="System.Threading.ExecutionContext" Alias="ExecutionContext" />
-  </ItemGroup>
-</Project>
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net7.0</TargetFramework>
+    <AzureFunctionsVersion>v4</AzureFunctionsVersion>
+    <OutputType>Exe</OutputType>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Azure.Functions.Worker" Version="1.10.0" />
+    <PackageReference Include="Microsoft.Azure.Functions.Worker.Extensions.Http" Version="3.0.13" />
+    <PackageReference Include="Microsoft.Azure.Functions.Worker.Sdk" Version="1.7.0" />
+    <PackageReference Include="Azure.Bicep.Core" Version="0.24.24" />
+    <PackageReference Include="System.IO.Abstractions.TestingHelpers" Version="20.0.4" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Update="host.json">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+    <None Update="local.settings.json">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <CopyToPublishDirectory>Never</CopyToPublishDirectory>
+    </None>
+  </ItemGroup>
+  <ItemGroup>
+    <Using Include="System.Threading.ExecutionContext" Alias="ExecutionContext" />
+  </ItemGroup>
+</Project>