Invoke-PSRule hangs if JSON rule file is empty

[ArmaanMcleod]

Description of the issue

When running Invoke-PSRule with a .jsonc rule file, if the file is empty it hangs. Works fine when an empty array exists in the file.

To Reproduce

Steps to reproduce the issue:

$testObject = [PSCustomObject]@{
    Name = 'TestObject1'
    Value = 1
}

$jsonFilePath = ".\FromFile.Rule.jsonc" # Empty file

$testObject | Invoke-PSRule -Path $jsonFilePath # Hangs

Expected behaviour

Should not hang.

Error output

Module in use and version:

• Module: PSRule
• Version: v2.0.0-B2202024

Captured output from $PSVersionTable:

Name                           Value
----                           -----
PSVersion                      7.2.1
PSEdition                      Core
GitCommitId                    7.2.1
OS                             Microsoft Windows 10.0.22000
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0

Additional context