'Error acquiring token from the Azure CLI' due to wrong cli_path

[hunter86bg]

It seems that File.join returns an invalid cli_path like this on Server2019 and Windows 10:

irb(main):002:1* ENV['PATH'].split(File::PATH_SEPARATOR).each do |path|
irb(main):003:2*   exts.each do |ext|
irb(main):004:2*     executable = File.join(path, "az#{ext}")
irb(main):005:2*     puts executable if File.executable?(executable) && !File.directory?(executable)
irb(main):006:1*   end
irb(main):007:0> end
C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\wbin/az.CMD
=>
<OUTPUT TRUNCATED>

This leads to triggering the rescue in acquire_token().

[hunter86bg]

https://github.com/Azure/azure-sdk-for-ruby/pull/2853 theoretically should fix it:

irb(main):042:1* ENV['PATH'].split(File::PATH_SEPARATOR).each do |path|
irb(main):043:2*   exts.each do |ext|
irb(main):044:2*     executable = File.join(path, "az#{ext}").gsub(File::SEPARATOR, File::ALT_SEPARATOR || File::SEPARATOR)
irb(main):045:2*     puts executable if File.executable?(executable) && !File.directory?(executable)
irb(main):046:1*   end
irb(main):047:0> end
C:\Program Files (x86)\Microsoft SDKs\Azure\CLI2\wbin\az.CMD
=>
<OUTPUT TRUNCATED>

[kurtzeborn]

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